Numerical simulation of airflow behaviour and nozzlegood quality

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  • Numerical simulation of airflow behaviour and nozzle ...

    The simulation results are analysed with respect to vorticity magnitude (VM), turbulent kinetic energy (TKE), turbulent intensity (TI), and radial velocity (RV). For better understanding of the airflow behaviour in different parts of the nozzle, the contours of 3D and surface streamlines are analysed.

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites ... quality commingled yarns at low air pressure is introduced. 3D CFD simulation and experimental studies are conducted to investigate the effect of aerodynamics of three different cylindrical nozzle configurations (CONF) on the ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Request PDF | Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites | The current study highlights the superiority of nozzles with forwarding ...

    Get Price
  • Numerical Simulation of Airflow Structure and Dust ...

    2020-5-15 · Numerical simulation was divided into three steps. First, the size of the computational area was defined and macro parameters, such as airflow speed, were calculated. The computational area was determined as the domain in which the macro parameter value did not change with the calculation area size, and was meshed with the calculation domain.

    Get Price
  • Review on Numerical Simulation of Airflow and Pollutant ...

    2020-5-15 · Review on Numerical Simulation of Airflow and Pollutant Dispersion in Urban ... Zhang et al., Aerosol and Air Quality Research, 18: 780–789, 2018 781 ... Bilal et al.’s (2016) numerical simulation results also suggested that the performance of microscale model …

    Get Price
  • Numerical simulation of airflow in the human nose.

    Numerical simulation of airflow in the human nose. Weinhold I (1), Mlynski G. (1)Department of Otorhinolaryngology and Head and Neck Surgery, Ernst Moritz Arndt University of Greifswald, Walther-Rathenau-Strasse 43-45, 17487 Greifswald, Germany. Unobstructed air passageways as well as sufficient contact of the air stream with the mucous ...

    Get Price
  • Numerical simulation of airflow in the human nose ...

    2003-12-3 · Unobstructed air passageways as well as sufficient contact of the air stream with the mucous membrane are essential for the correct function of the nose. For that, local flow phenomena, which often cannot be captured by standard diagnostic methods, are important. We developed and validated a method for the numerical simulation of the nasal airflow. Two anatomically correct, transparent resin ...

    Get Price
  • CFD NUMERICAL SIMULATION OF TEMPERATURE AND

    2020-8-7 · Keywords: CFD, numerical simulation, grid independence, airflow velocity, temperature distribution ABSTRACT Grid independence verification was implemented to improve the reliability of CFD numerical simulation in pigsty. The effects of four different grid numbers on airflow and temperature simulation of 0.4m, 1.0m and 1.6m heights were compared.

    Get Price
  • Numerical simulation of the hydrodynamic behavior of a ...

    2019-5-15 · A two-dimensional numerical wave tank with length of 20 m and depth of 0.5 m is adopted here, and the water depth is 0.3 m. The waves are generated from the inlet boundary, and an active wave absorption technique (Higuera et al., 2013 a and b) is adopted to eliminate the reflected waves in the outlet boundary.The aerial barrier is located 10 m away from the wave entrance (i.e. the inlet ...

    Get Price
  • (PDF) Numerical simulation of convective airflow in an ...

    PDF | On Dec 25, 2011, Kana Horikiri and others published Numerical simulation of convective airflow in an empty room | Find, read and cite all the research you need on ResearchGate

    Get Price
  • Numerical simulation of airflow characteristics in the ...

    2018-8-15 · Numerical simulation of airflow characteristics in the spinning zone at starting time of air-jet spinning machine. Thi Viet Bac Phung, Akihiro Yoshida, Yoshiyuki Iemoto, Hideyuki Uematsu, and Shuichi Tanoue ... The effect of different nozzle configurations on airflow behaviour and yarn quality.

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  • Numerical simulation of airflow in the human nose.

    Numerical simulation of airflow in the human nose. Weinhold I (1), Mlynski G. (1)Department of Otorhinolaryngology and Head and Neck Surgery, Ernst Moritz Arndt University of Greifswald, Walther-Rathenau-Strasse 43-45, 17487 Greifswald, Germany. Unobstructed air passageways as well as sufficient contact of the air stream with the mucous ...

    Get Price
  • Numerical simulation of airflow in the human nose ...

    2003-12-3 · Unobstructed air passageways as well as sufficient contact of the air stream with the mucous membrane are essential for the correct function of the nose. For that, local flow phenomena, which often cannot be captured by standard diagnostic methods, are important. We developed and validated a method for the numerical simulation of the nasal airflow. Two anatomically correct, transparent resin ...

    Get Price
  • CFD NUMERICAL SIMULATION OF TEMPERATURE AND

    2020-8-7 · Keywords: CFD, numerical simulation, grid independence, airflow velocity, temperature distribution ABSTRACT Grid independence verification was implemented to improve the reliability of CFD numerical simulation in pigsty. The effects of four different grid numbers on airflow and temperature simulation of 0.4m, 1.0m and 1.6m heights were compared.

    Get Price
  • Numerical Investigation of Indoor Air Quality and

    Abstract—Understanding the behavior of airflow in a room is essential for building designers to provide the most efficient design of ventilation system, and having acceptable indoor air quality.

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  • (PDF) NUMERICAL SIMULATION OF AIRFLOW

    NUMERICAL SIMULATION OF AIRFLOW DISTRIBUTION IN A MIXED FLOW DRYER Holger Scaar*, Fabian Weigler, Jochen Mellmann Department of post-harvest technology, Leibniz Institute of Agricultural Engineering (ATB) Potsdam-Bornim, Max-Eyth-Allee 100, Potsdam 14469, Germany *Tel.:+49331/5699336, E-Mail: [email protected] Abstract Mixed-flow dryers are widely used to …

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  • PAPER OPEN ACCESS Numerical simulation of thermal ...

    Numerical simulation of thermal stratification and air quality in an underfloor air distribution system (UFAD) To cite this article: Neil Stephen Lopez et al 2020 IOP Conf. Ser.: Earth Environ.

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  • Numerical Modelling of the Aeroacoustic and Flow

    2020-9-25 · In this paper, the acoustic behaviour of chip fans is characterised by measuring the sound pressure levels at different speeds when running idle. In addition, the aeroacoustic and flow behaviour of chip turbines is numerically modelled with a Computational Fluid Dynamic (CFD) simulation.

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  • Numerical simulation and field experiment study on

    2019-11-21 · The results of numerical simulation showed that the dust-carrying airflow, after being blocked by the coal cutter, dispersed in the lateral direction, leading to an increase of airflow velocity on the walkway side to 1.75 m s −1, and a dust concentration as high as 2500 mg m −3. At the same time, an airflow vortex area with the largest ...

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  • [PDF] An Overview of Experiments and Numerical

    ABSTRACT Determining the hotspots and deposition efficiencies (DEs) for aerosols in human airways is important for both research and medical purposes. The complexity of the human airways and the breathing process limit the application of in vitro measurements to only two consecutive branches of the human airway. Herein, in-depth information on in vitro experiments and state-of-the-art review ...

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  • Numerical simulation of airflow behaviour and nozzle ...

    The simulation results are analysed with respect to vorticity magnitude (VM), turbulent kinetic energy (TKE), turbulent intensity (TI), and radial velocity (RV). For better understanding of the airflow behaviour in different parts of the nozzle, the contours of 3D and surface streamlines are analysed.

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites ... quality commingled yarns at low air pressure is introduced. 3D CFD simulation and experimental studies are conducted to investigate the effect of aerodynamics of three different cylindrical nozzle configurations (CONF) on the ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Request PDF | Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites | The current study highlights the superiority of nozzles with forwarding ...

    Get Price
  • Numerical Simulation of Airflow Structure and Dust ...

    2020-5-15 · Numerical simulation was divided into three steps. First, the size of the computational area was defined and macro parameters, such as airflow speed, were calculated. The computational area was determined as the domain in which the macro parameter value did not change with the calculation area size, and was meshed with the calculation domain.

    Get Price
  • Review on Numerical Simulation of Airflow and Pollutant ...

    2020-5-15 · Review on Numerical Simulation of Airflow and Pollutant Dispersion in Urban ... Zhang et al., Aerosol and Air Quality Research, 18: 780–789, 2018 781 ... Bilal et al.’s (2016) numerical simulation results also suggested that the performance of microscale model …

    Get Price
  • Numerical simulation of airflow in the human nose.

    Numerical simulation of airflow in the human nose. Weinhold I (1), Mlynski G. (1)Department of Otorhinolaryngology and Head and Neck Surgery, Ernst Moritz Arndt University of Greifswald, Walther-Rathenau-Strasse 43-45, 17487 Greifswald, Germany. Unobstructed air passageways as well as sufficient contact of the air stream with the mucous ...

    Get Price
  • Numerical simulation of airflow in the human nose ...

    2003-12-3 · Unobstructed air passageways as well as sufficient contact of the air stream with the mucous membrane are essential for the correct function of the nose. For that, local flow phenomena, which often cannot be captured by standard diagnostic methods, are important. We developed and validated a method for the numerical simulation of the nasal airflow. Two anatomically correct, transparent resin ...

    Get Price
  • CFD NUMERICAL SIMULATION OF TEMPERATURE AND

    2020-8-7 · Keywords: CFD, numerical simulation, grid independence, airflow velocity, temperature distribution ABSTRACT Grid independence verification was implemented to improve the reliability of CFD numerical simulation in pigsty. The effects of four different grid numbers on airflow and temperature simulation of 0.4m, 1.0m and 1.6m heights were compared.

    Get Price
  • Numerical simulation of the hydrodynamic behavior of a ...

    2019-5-15 · A two-dimensional numerical wave tank with length of 20 m and depth of 0.5 m is adopted here, and the water depth is 0.3 m. The waves are generated from the inlet boundary, and an active wave absorption technique (Higuera et al., 2013 a and b) is adopted to eliminate the reflected waves in the outlet boundary.The aerial barrier is located 10 m away from the wave entrance (i.e. the inlet ...

    Get Price
  • (PDF) Numerical simulation of convective airflow in an ...

    PDF | On Dec 25, 2011, Kana Horikiri and others published Numerical simulation of convective airflow in an empty room | Find, read and cite all the research you need on ResearchGate

    Get Price
  • Numerical study of the airflow during aeration with ...

    2013-3-18 · Key words: Computational Fluid Dynamics, Indoor Air Quality, Indoor Environment, Aeration, Occupant Behavior INTRODUCTION This paper presents the results from numerical study on the aeration mechanism in non-ventilated residence areas, with respect to windows and doors opening behaviour of the occupants.

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  • Atmosphere

    In this study, we have developed a numerical model based on an open source Computational Fluid Dynamics (CFD) package OpenFOAM, in order to investigate the flow pattern and pollutant dispersion in urban street canyons with different geometry configurations. In the new model, the pollutant transport driven by airflow is modeled by the scalar transport equation coupling with the momentum ...

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  • Numerical Zooming Between a NPSS Engine System

    2020-8-6 · running' behavior of the compressor rotor, blades and casing could be predicted as a result of the integrated aerodynamic, structural and thermal analysis. Given the market pressures to improve quality, reduce cost and speed time to market, physics-based, system-level simulation is a key enabler to achieving competitive capability.

    Get Price
  • AIRFLOW BEHAVIOR IN PARTICLE TRANSMISSION IN AN

    2016-5-28 · the simulation indicated that effectiveness of airflow behaviour in diluting indoor air particle are affected by inlet air supply position, outlet position and barrier condition in the room. Thus, these indicate that to improve IAQ of a room it needs to properly understand the airflow behaviour.

    Get Price
  • Chapter 6 Application of numerical simulation to ...

    2001-8-17 · CHAPTER 6 APPLICATION OF NUMERICAL SIMULATION TO VENTILATED FLOW PROBLEMS 102 6.1 Introduction Airflow in ventilated enclosures can be divided into the following groups: mixing type where the flow is driven by forced convection, and natural convection where the main driving force is the buoyancy.

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  • Numerical Analysis of Airflow Fields from New Melt

    2020-5-28 · The melt-blowing process uses high-speed and high-temperature airflow from the die head to draw polymer melt into micron-sized fibers. In this work, to reduce the diameter of the melt-blowing fibers, three new slot dies have been designed based on the common slot die. With computational fluid dynamics technology, the two-dimensional flow fields from these new types of slot dies were ...

    Get Price
  • Numerical simulation of the flow and erosion behavior of ...

    2020-2-5 · Qili, W., Binbin, J., Mingquan, Y. et al. Numerical simulation of the flow and erosion behavior of exhaust gas and particles in polysilicon reduction furnace. Sci Rep 10, 1909 (2020). https://doi ...

    Get Price
  • Numerical investigation of airflow pattern and particulate ...

    UNLABELLED This study reports on a numerical investigation of transport behavior of indoor airflow and size-dependent particulate matter (PM) in multi-room buildings. An indoor size-dependent PM transport approach, combining the Eulerian large-eddy simulation of turbulent flow with the Lagrangian particle trajectory tracking, was developed to investigate indoor airflow pattern and PM1/PM2.5 ...

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  • Numerical Study of the Composite Effects of Uneven

    2020-7-21 · on the airflow pattern and pollutant dispersion in street canyons remain unexplained. The present study established four street canyon models (one even model and three uneven models with different ORHBs of 0.25, 0.50 and 0.75) for numerical simulations under time-varying boundary inflows;

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  • [PDF] Airflow inside tunnel boring machine: A numerical ...

    Knowledge of the airflow distribution inside a Tunnel Boring Machine (TBM) can create a safe working environment for workers and machinery. The airflow quality and the related mass flow rate in the ventilation system should be sufficient to dilute gases and remove dust inside the tunnel. In this work, airflow distribution in the single shield TBM tunnel was studied using computational fluid ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    The simulation results are analysed with respect to vorticity magnitude (VM), turbulent kinetic energy (TKE), turbulent intensity (TI), and radial velocity (RV). For better understanding of the airflow behaviour in different parts of the nozzle, the contours of 3D and surface streamlines are analysed.

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites ... quality commingled yarns at low air pressure is introduced. 3D CFD simulation and experimental studies are conducted to investigate the effect of aerodynamics of three different cylindrical nozzle configurations (CONF) on the ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    Request PDF | Numerical simulation of airflow behaviour and nozzle geometry on commingling for thermoplastic composites | The current study highlights the superiority of nozzles with forwarding ...

    Get Price
  • Numerical Simulation of Airflow Structure and Dust ...

    2020-5-15 · Numerical simulation was divided into three steps. First, the size of the computational area was defined and macro parameters, such as airflow speed, were calculated. The computational area was determined as the domain in which the macro parameter value did not change with the calculation area size, and was meshed with the calculation domain.

    Get Price
  • Review on Numerical Simulation of Airflow and Pollutant ...

    2020-5-15 · Review on Numerical Simulation of Airflow and Pollutant Dispersion in Urban ... Zhang et al., Aerosol and Air Quality Research, 18: 780–789, 2018 781 ... Bilal et al.’s (2016) numerical simulation results also suggested that the performance of microscale model …

    Get Price
  • Numerical simulation of airflow in the human nose.

    Numerical simulation of airflow in the human nose. Weinhold I (1), Mlynski G. (1)Department of Otorhinolaryngology and Head and Neck Surgery, Ernst Moritz Arndt University of Greifswald, Walther-Rathenau-Strasse 43-45, 17487 Greifswald, Germany. Unobstructed air passageways as well as sufficient contact of the air stream with the mucous ...

    Get Price
  • Numerical simulation of airflow in the human nose ...

    2003-12-3 · Unobstructed air passageways as well as sufficient contact of the air stream with the mucous membrane are essential for the correct function of the nose. For that, local flow phenomena, which often cannot be captured by standard diagnostic methods, are important. We developed and validated a method for the numerical simulation of the nasal airflow. Two anatomically correct, transparent resin ...

    Get Price
  • CFD NUMERICAL SIMULATION OF TEMPERATURE AND

    2020-8-7 · Keywords: CFD, numerical simulation, grid independence, airflow velocity, temperature distribution ABSTRACT Grid independence verification was implemented to improve the reliability of CFD numerical simulation in pigsty. The effects of four different grid numbers on airflow and temperature simulation of 0.4m, 1.0m and 1.6m heights were compared.

    Get Price
  • Numerical simulation of the hydrodynamic behavior of a ...

    2019-5-15 · A two-dimensional numerical wave tank with length of 20 m and depth of 0.5 m is adopted here, and the water depth is 0.3 m. The waves are generated from the inlet boundary, and an active wave absorption technique (Higuera et al., 2013 a and b) is adopted to eliminate the reflected waves in the outlet boundary.The aerial barrier is located 10 m away from the wave entrance (i.e. the inlet ...

    Get Price
  • (PDF) Numerical simulation of convective airflow in an ...

    PDF | On Dec 25, 2011, Kana Horikiri and others published Numerical simulation of convective airflow in an empty room | Find, read and cite all the research you need on ResearchGate

    Get Price
  • Numerical simulation of the flow and erosion behavior of ...

    2020-2-5 · Qili, W., Binbin, J., Mingquan, Y. et al. Numerical simulation of the flow and erosion behavior of exhaust gas and particles in polysilicon reduction furnace. Sci Rep 10, 1909 (2020). https://doi ...

    Get Price
  • Numerical modeling of airflow over the Ahmed body

    2004-5-13 · Numerical results agree well with the reported experiments. 1. INTRODUCTION In order to investigate the behavior of newly developed turbulence models for complex geometry cases, a simplified car model, known as the Ahmed body, has been tested by Ahmed, et al[1] in the early 1980s. The Ahmed body is made up of a round front

    Get Price
  • AIRFLOW BEHAVIOR IN PARTICLE TRANSMISSION IN AN

    2016-5-28 · the simulation indicated that effectiveness of airflow behaviour in diluting indoor air particle are affected by inlet air supply position, outlet position and barrier condition in the room. Thus, these indicate that to improve IAQ of a room it needs to properly understand the airflow behaviour.

    Get Price
  • Numerical investigation of the breakup behavior of an ...

    2018-7-3 · Inlet boundary conditions for the two-phase simulations are obtained from preceding single-phase, unsteady Reynolds-averaged Navier-Stokes simulations of a fluidic oscillator. The highest grid resolution shows an accurate representation of surface-tension- and inertia-induced breakup mechanisms, and turbulence effects along the interface appear ...

    Get Price
  • Numerical Simulation Flow and Temperature Fields of

    Fiber air dispersion system (FADS) is an advanced flexible ventilation terminal in ventilated areas. Its benefits are numerous, which are air diffusion without feeling, anti-condensation, easy cleaning and low cost etc. The technology of computational fluid dynamics (CFD) was used in this paper. At first, a physical model of the environment conditioned by FADS was built.

    Get Price
  • Large Eddy Simulation of Airflow in a Single Family House

    2020-10-13 · Averaged Navier Stokes) for airflow movement. These works include particle dispersion in a ventilated room with objects inside with a zero equation model by Zhao and Guan (2007), cross and single side ventilation with a k- Ý model by Visagavel, et al. (2009), numerical simulation models for the calculation of heat transfer coefficients by

    Get Price
  • Numerical Zooming Between a NPSS Engine System

    2020-8-6 · running' behavior of the compressor rotor, blades and casing could be predicted as a result of the integrated aerodynamic, structural and thermal analysis. Given the market pressures to improve quality, reduce cost and speed time to market, physics-based, system-level simulation is a key enabler to achieving competitive capability.

    Get Price
  • Numerical Analysis of Airflow Fields from New Melt

    2020-5-28 · The melt-blowing process uses high-speed and high-temperature airflow from the die head to draw polymer melt into micron-sized fibers. In this work, to reduce the diameter of the melt-blowing fibers, three new slot dies have been designed based on the common slot die. With computational fluid dynamics technology, the two-dimensional flow fields from these new types of slot dies were ...

    Get Price
  • Numerical Investigations of Indoor Air Quality inside Al ...

    (2017) Jaafar et al. Procedia Engineering. The air conditioning applications in mosques are considered as one of the important HVAC applications, which indoor air quality depend on the behavior of the airflow, the distributions of temperatures and relative humidity and concentration of carbon dio...

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  • Numerical Analysis of Airway Mucus Clearance

    2020-2-6 · Cough is a protective respiratory reflex used to clear respiratory airway mucus. For patients with cough weakness, such as chronic obstructive pulmonary disease, …

    Get Price
  • Numerical simulation of the flow and erosion behavior of ...

    2020-2-5 · Qili, W., Binbin, J., Mingquan, Y. et al. Numerical simulation of the flow and erosion behavior of exhaust gas and particles in polysilicon reduction furnace. Sci Rep 10, 1909 (2020). https://doi ...

    Get Price
  • Numerical Analysis of Airway Mucus Clearance

    2020-2-6 · Cough is a protective respiratory reflex used to clear respiratory airway mucus. For patients with cough weakness, such as chronic obstructive pulmonary disease, neuromuscular weakness disease and ...

    Get Price
  • Experiments and numerical simulations of flow field and ...

    2017-10-16 · Today’s aerospace industrial first priority is the quality improvement of the composite material parts with the reduction of the manufacturing time in order to increase their quality/cost ratio. A ...

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  • Numerical investigation of the breakup behavior of an ...

    2018-7-3 · Inlet boundary conditions for the two-phase simulations are obtained from preceding single-phase, unsteady Reynolds-averaged Navier-Stokes simulations of a fluidic oscillator. The highest grid resolution shows an accurate representation of surface-tension- and inertia-induced breakup mechanisms, and turbulence effects along the interface appear ...

    Get Price
  • AIRFLOW BEHAVIOR IN PARTICLE TRANSMISSION IN AN

    2016-5-28 · the simulation indicated that effectiveness of airflow behaviour in diluting indoor air particle are affected by inlet air supply position, outlet position and barrier condition in the room. Thus, these indicate that to improve IAQ of a room it needs to properly understand the airflow behaviour.

    Get Price
  • Using Large Eddy Simulation to Study Airflows in and ...

    2008-3-4 · years of CPU time in a super computer to solve a meaningful problem of airflow in and around buildings. Therefore, the computer capacity is still far too small and the computer speed is far too slow with the direct numerical simulation method. RANS modeling requires little computing time and is …

    Get Price
  • Numerical Analysis of Airflow Fields from New Melt

    2020-5-28 · The melt-blowing process uses high-speed and high-temperature airflow from the die head to draw polymer melt into micron-sized fibers. In this work, to reduce the diameter of the melt-blowing fibers, three new slot dies have been designed based on the common slot die. With computational fluid dynamics technology, the two-dimensional flow fields from these new types of slot dies were ...

    Get Price
  • Numerical Zooming Between a NPSS Engine System

    2020-8-6 · running' behavior of the compressor rotor, blades and casing could be predicted as a result of the integrated aerodynamic, structural and thermal analysis. Given the market pressures to improve quality, reduce cost and speed time to market, physics-based, system-level simulation is a key enabler to achieving competitive capability.

    Get Price
  • Numerical Simulation Flow and Temperature Fields of

    Fiber air dispersion system (FADS) is an advanced flexible ventilation terminal in ventilated areas. Its benefits are numerous, which are air diffusion without feeling, anti-condensation, easy cleaning and low cost etc. The technology of computational fluid dynamics (CFD) was used in this paper. At first, a physical model of the environment conditioned by FADS was built.

    Get Price
  • Experiments and numerical simulations of flow field and ...

    2017-10-16 · The experimental results are then compared with those derived from numerical simulations using a commercial RANS CFD code. This study aims at developing a semi-empirical approach for the prediction of the heat transfer coefficient around the parts and therefore predicts its thermal history during the process with a view of optimization.

    Get Price
  • Experiments and numerical simulations of flow field and ...

    2017-10-16 · The experimental results are then compared with those derived from numerical simulations using a commercial RANS CFD code. This study aims at developing a semi-empirical approach for the prediction of the heat transfer coefficient around the parts and therefore predicts its thermal history during the process with a view of optimization.

    Get Price
  • Numerical modeling of airflow over the Ahmed body

    2004-5-13 · Numerical results agree well with the reported experiments. 1. INTRODUCTION In order to investigate the behavior of newly developed turbulence models for complex geometry cases, a simplified car model, known as the Ahmed body, has been tested by Ahmed, et al[1] in the early 1980s. The Ahmed body is made up of a round front

    Get Price
  • AIRFLOW BEHAVIOR IN PARTICLE TRANSMISSION IN AN

    2016-5-28 · the simulation indicated that effectiveness of airflow behaviour in diluting indoor air particle are affected by inlet air supply position, outlet position and barrier condition in the room. Thus, these indicate that to improve IAQ of a room it needs to properly understand the airflow behaviour.

    Get Price
  • Numerical Modeling of Turbulent and Laminar Airflow and ...

    2005-12-14 · The numerical simulations of human sniffing described above, however, reveal that the odorant mass transport onto the olfactory mucosa during sniffing (turbulent airflow) is remarkably similar to that which occurs during resting breathing (i.e., laminar airflow) if …

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  • Simulation of indoor harmful gas dispersion and airflow ...

    2021-3-19 · An LBM-LES modeling framework for turbulent flow simulation has been extended to indoor airflow and pollutant gas dispersion in buildings. The results of the LBM-LES model match those of published experimental and numerical studies and can correctly simulate the indoor airflow and harmful gas behavior.

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  • Experimental and Numerical Analysis of Heat Transfer

    2009-12-16 · Experimental and Numerical Analysis of Heat Transfer and Airflow on an Interactive Building Facade Roberto Fuliotto1, Francesco Cambuli1, Natalino Mandas1, Nicoletta Bacchin2, Giampiero Manara2, and Qingyan Chen3,* 1 D.I.Me.Ca. Dipartimento di Ingegneria Meccanica, Università degli studi di Cagliari, Italy 2 Research & Engineering Department, Permasteelisa S.p.A., Italy

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  • Simulation of Room Airflow Using Comsol Multiphysics ...

    Airflow in a room can be supplied both through natural mean and also by the helps of mechanical ventilation. Natural ventilation is more sustainable compared to mechanical system; however natural ventilation, it may not be sufficient to fulfil the need of ventilation for a specific room. This study presents simulation works carried out regarding to the airflow movement in a room due to ...

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  • CFD Simulation Singapore

    CFD or computational fluid dynamics is the study of the Fluid flow of liquids and gases in and around specifically engineered objects under study. It also involves the numerical modeling and simulation of thermal behaviors. The equations governing fluid …

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  • Numerical simulation of granular mixing in static mixers ...

    2019-6-19 · A static mixer is a fidelity engineered device for the continuous mixing of fluid/solid materials. To meet the requirements for mixing purpose, a proper design of the static mixer is important. In this study, we proposed various designs of static mixer based on the blade geometry. Six blade patterns including four twisted blades, four elliptical blades and other four combined geometries of two ...

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  • Characterization of pressure fluctuations within a ...

    2020-7-29 · Sandberg, R. D. & Sandham, N. D. Direct numerical simulation of turbulent flow past a trailing-edge and the associated noise generation. J. Fluid Mech. 596 , 353–385 (2008).

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