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  • The influence of molecular geometry on the efficiency of ...

    The focus is on studying the intricate role of the steric effects that influence molecular geometry, and the energy of electronic excited states on the photophysics of TADF. X-ray crystal data Fig. 2 shows the molecular structures obtained from X-ray experiments for …

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  • Influence of Nozzle Geometry on the Noise of High-Speed ...

    2012-5-17 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

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  • Numerical investigation of the influences of mixing ...

    2014-11-17 · In studying the influence of the mixing chamber length on the performance of the steam ejector, the primary, the secondary and the back pressure are fixed at 600 kPa, 15 kPa and 40 kPa, respectively. The mixing chamber length is changed without changing the convergence angle and the outlet diameter of the mixing chamber.

    Get Price
  • Influence of particle size and blender size on blending ...

    The effect of particle size enlargement and blender geometry down-scaling on the blend uniformity (BU) was evaluated by Discrete Element Method (DEM) to predict the blending performance of a binary granular mixture. Three 10 kg blending experiments differentiated by the physical properties specifica …

    Get Price
  • The Influence of Shroud and Cavity Geometry on Turbine ...

    2008-6-17 · Imperfections in the turbine annulus geometry, caused by the presence of the shroud and associated cavity, have a significant influence on the aerodynamics of the main passage flow path. In this paper, the datum shroud geometry, representative of steam turbine industrial practice, was systematically varied and numerically tested.

    Get Price
  • Experimental and numerical investigation of the influence ...

    2012-9-1 · To investigate the influence of the mixer diameter on ejector performance, a series of 12 measurement points was taken. Mixing sections with D MIX = 2 × 10 −3 m, D MIX = 3 × 10 −3 m, and D MIX = 5 × 10 −3 m were examined, each for the case with L MIX = 10 × D MIX, and α DIF = 5 °.

    Get Price
  • Numerical investigation of geometry parameters for

    2009-4-1 · Converging angle of mixing section: The ejector performance is very sensitive to θ especially near its optimum value, and a slight variation of θ has a great influence on the ejector performance. When the NXP is within its optimum range, the optimum converging angle is in the range of 1.45–4.2° with the primary flow pressure from 4.5 to 6 bar.

    Get Price
  • Influence of CO2 concentration on the performance of

    2021-1-1 · This paper investigated the influence of different CO 2 concentrations on the microstructural and mechanical development of reactive MgO cement (RMC) concrete. Combination of various analyses revealed the enhancement of hydrated magnesium carbonate (HMC) phases with relatively superior micro-mechanical properties as the CO 2 concentration increased from ambient (~0.04%) to …

    Get Price
  • The numerical analysis of the effect of geometrical ...

    2013-9-25 · The working fluid in the model is methane. The density of the methane is obtained using the ideal gas equation. The other properties, such as the specific heat, the thermal conductivity, the viscosity and the molecular weight, are held constant, as listed in Table 1.Standard wall function is used in the near wall treatment, which gives reasonably accurate results for a wall bounded with a very ...

    Get Price
  • Effects of Focus Geometry on the Hard Rock-Cutting ...

    Abrasive waterjets are being increasingly used in civil engineering for rock and concrete cutting, particularly for the demolition or repair of old structures. The energy of an abrasive waterjet is primarily provided by the accelerated abrasive. The momentum transfer during mixing and acceleration determines the abrasive velocity, which affects the cutting performance.

    Get Price
  • The influence of molecular geometry on the efficiency of ...

    The focus is on studying the intricate role of the steric effects that influence molecular geometry, and the energy of electronic excited states on the photophysics of TADF. X-ray crystal data Fig. 2 shows the molecular structures obtained from X-ray experiments for molecules 6, 7 and 8.

    Get Price
  • Influence of Nozzle Geometry on the Noise of High-Speed ...

    2012-5-17 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

    Get Price
  • Numerical investigation of the influences of mixing ...

    2014-11-17 · In studying the influence of the mixing chamber length on the performance of the steam ejector, the primary, the secondary and the back pressure are fixed at 600 kPa, 15 kPa and 40 kPa, respectively. The mixing chamber length is changed without changing the convergence angle and the outlet diameter of the mixing chamber.

    Get Price
  • Influence of particle size and blender size on blending ...

    The effect of particle size enlargement and blender geometry down-scaling on the blend uniformity (BU) was evaluated by Discrete Element Method (DEM) to predict the blending performance of a binary granular mixture. Three 10 kg blending experiments differentiated by the physical properties specifica …

    Get Price
  • The Influence of Shroud and Cavity Geometry on Turbine ...

    2008-6-17 · Imperfections in the turbine annulus geometry, caused by the presence of the shroud and associated cavity, have a significant influence on the aerodynamics of the main passage flow path. In this paper, the datum shroud geometry, representative of steam turbine industrial practice, was systematically varied and numerically tested.

    Get Price
  • Experimental and numerical investigation of the influence ...

    2012-9-1 · To investigate the influence of the mixer diameter on ejector performance, a series of 12 measurement points was taken. Mixing sections with D MIX = 2 × 10 −3 m, D MIX = 3 × 10 −3 m, and D MIX = 5 × 10 −3 m were examined, each for the case with L MIX = 10 × D MIX, and α DIF = 5 °.

    Get Price
  • Numerical investigation of geometry parameters for

    2009-4-1 · Converging angle of mixing section: The ejector performance is very sensitive to θ especially near its optimum value, and a slight variation of θ has a great influence on the ejector performance. When the NXP is within its optimum range, the optimum converging angle is in the range of 1.45–4.2° with the primary flow pressure from 4.5 to 6 bar.

    Get Price
  • Influence of CO2 concentration on the performance of

    2021-1-1 · This paper investigated the influence of different CO 2 concentrations on the microstructural and mechanical development of reactive MgO cement (RMC) concrete. Combination of various analyses revealed the enhancement of hydrated magnesium carbonate (HMC) phases with relatively superior micro-mechanical properties as the CO 2 concentration increased from ambient (~0.04%) to …

    Get Price
  • The numerical analysis of the effect of geometrical ...

    2013-9-25 · The working fluid in the model is methane. The density of the methane is obtained using the ideal gas equation. The other properties, such as the specific heat, the thermal conductivity, the viscosity and the molecular weight, are held constant, as listed in Table 1.Standard wall function is used in the near wall treatment, which gives reasonably accurate results for a wall bounded with a very ...

    Get Price
  • Effects of Focus Geometry on the Hard Rock-Cutting ...

    Abrasive waterjets are being increasingly used in civil engineering for rock and concrete cutting, particularly for the demolition or repair of old structures. The energy of an abrasive waterjet is primarily provided by the accelerated abrasive. The momentum transfer during mixing and acceleration determines the abrasive velocity, which affects the cutting performance.

    Get Price
  • Influence of impingement edge geometry on cavity flow ...

    2012-5-17 · Influence of impingement edge geometry on cavity flow oscillations. ... Numerical investigation of flow field effects on fuel–air mixing in a non-reacting trapped vortex combustor with different injection arrangements. ... Effect of Rear Face Geometry on the Open Cavity Oscillatory Flow at …

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  • Study of the Different Factors That Influence Jet Pump ...

    2013-12-24 · A simple geometry jet pump was designed, developed and tested. The experiments show that we should ... mixing chamber length of 7.25 Dmix had proven superi- ority over the other two mixing chambers length of 6.75 and 7.86 Dmix. Mixing throat length ranging from 3.5 to ... Study of the Different Factors That Influence Jet Pump Performance Author:

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  • 'Effect of electrode geometry on high energy spark ...

    This work shows the influence of the electrode configuration on the fluid dynamics following the spark discharge and how the hot gas evolution gives rise to various physical phenomena (i.e. generation of turbulence, inducing vorticity, and gas mixing) that can be used to modify the flow-field structure near the boundary layer on an aerodynamic ...

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  • Influence of Rubber Pre-Processing on the Rheological ...

    2017-1-17 · enhance the asphalt road performance. It is also common to add small quantities of rubber, such as 1%, but also higher ... with geometry of 25 mm and a gap of of 1.0 mm for neat bitumen and 1.2 mm for crumb- ... and SBS has a positive influence on the mixing efficiency and the rheological behavior of polymer-modified bitumen

    Get Price
  • Influence of Steel Fibres and Matrix Composition on The ...

    2016-8-3 · Influence of steel fibres and matrix composition on the properties of UHPFRC Kim Huy Hoang, Philipp Hadl, Nguyen Viet Tue 5 4. Results Table 2: The critical volumes of StF1 and StF2 and the equivalent fibre factors for the four UHPC matrices. Fibre …

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  • Influence of a Mixing-Jet on Film Cooling

    An experimental analysis of the slot film cooling performance downstream of a mixing jet has been performed. The mixing jet was blown into the main flow at a position five jet diameters downstream of the slot exit. Flow visualizations of the jet and of the cooling film are presented for blowing rates of 1 and 2 with jet momentum rates of 7 and 10.

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  • SAE MOBILUS

    2005-4-11 · “A numerical study of the influence of the diesel nozzle geometry in the injection rate characteristic” Fuel 83 4-5 419 431 2004 Singh I. Zhong L. Lai M.-C. Henein N.A. Bryzik W. “Effect of nozzle hole geometry on a HSDI diesel engine-out emissions” SAE Paper No 2003-01-0704 2003

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  • Selective aerobic oxidation of para-xylene in sub- and ...

    In this paper we report a strong dependence of the observed performance of the catalyst on the geometry and the configuration of laboratory scale reactors in the continuous aerobic oxidation of p-xylene in supercritical water.Small differences, such as the …

    Get Price
  • Uncertainty quantification of the effects of squealer tip ...

    2020-1-13 · These geometry deviations would change the flow field near the blade tip, which will influence the thermal and aerodynamic performance. Thus, it is important to quantitatively investigate the effects of squealer tip geometry deviation on the aerothermal performance.

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  • Influence of Cowl Leading Edge on Inlet Performance of ...

    Influence of inflow Mach number and outflow pressure on inlet performance was also analyzed. ... Whereas a variable-geometry inlet maximizes performance, it adds weight and complexity to the ...

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  • Influence of impingement edge geometry on cavity flow ...

    2012-5-17 · Influence of impingement edge geometry on cavity flow oscillations. ... Numerical investigation of flow field effects on fuel–air mixing in a non-reacting trapped vortex combustor with different injection arrangements. ... Effect of Rear Face Geometry on the Open Cavity Oscillatory Flow at …

    Get Price
  • The Influence of Inlet Geometry and Back Pressure on ...

    'The Influence of Inlet Geometry and Back Pressure on Cavitation and Noise Reduction in High Pressure Nozzles.' Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference . Emerging Technology in Fluids, Structures, and Fluid Structure Interactions: Volume 1, Fluid Dynamics and Fluid Structure Interactions .

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  • Evaluation of cyclone geometry and its influence on ...

    Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD) W. P ... Smagorinsky model can be thought of as combining the Reynolds averaging assumptions given by L ij + C ij = 0 with a mixing length-based eddy …

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  • Study of the Different Factors That Influence Jet Pump ...

    2013-12-24 · A simple geometry jet pump was designed, developed and tested. The experiments show that we should ... mixing chamber length of 7.25 Dmix had proven superi- ority over the other two mixing chambers length of 6.75 and 7.86 Dmix. Mixing throat length ranging from 3.5 to ... Study of the Different Factors That Influence Jet Pump Performance Author:

    Get Price
  • Influence of Steel Fibres and Matrix Composition on The ...

    2016-8-3 · Influence of steel fibres and matrix composition on the properties of UHPFRC Kim Huy Hoang, Philipp Hadl, Nguyen Viet Tue 5 4. Results Table 2: The critical volumes of StF1 and StF2 and the equivalent fibre factors for the four UHPC matrices. Fibre …

    Get Price
  • The Influence of Electrode and Channel Configurations on ...

    2014-6-20 · The PFF cell is an exception that shows much lower performance. A single polarization curve at 120 mL/min is shown at the bottom of Figure 6. The poor performance of the PFF cell can be attributed to low rates of vanadium transfer to the fibers in the electrode in the absence of forced convection.

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  • (PDF) Influence of Stroke on Performance Characteristics ...

    The present study experimentally demonstrates the influence of the. dimensionless stoke L on the performance characteristics of a synthetic jet fan under Reynolds number Re =. 1800 and the same ...

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  • Selective aerobic oxidation of para-xylene in sub- and ...

    In this paper we report a strong dependence of the observed performance of the catalyst on the geometry and the configuration of laboratory scale reactors in the continuous aerobic oxidation of p-xylene in supercritical water.Small differences, such as the …

    Get Price
  • Influence of Rubber Pre-Processing on the Rheological ...

    2017-1-17 · enhance the asphalt road performance. It is also common to add small quantities of rubber, such as 1%, but also higher ... with geometry of 25 mm and a gap of of 1.0 mm for neat bitumen and 1.2 mm for crumb- ... and SBS has a positive influence on the mixing efficiency and the rheological behavior of polymer-modified bitumen

    Get Price
  • Unraveling the influence of non-fullerene acceptor ...

    2020-11-26 · Ye, L., Weng, K., Xu, J. et al. Unraveling the influence of non-fullerene acceptor molecular packing on photovoltaic performance of organic solar cells. Nat Commun 11, 6005 (2020). https://doi.org ...

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  • Time and Length Scales of Mixing: The Macro Scale ...

    2021-8-1 · The Double Planetary Mixer (photo) is suitable for high-precision mixing, granulation and vacuum drying all in a single vessel. Powders… A high-performance mixing and pumping skid system This company recently designed a new skid system (photo) capable of mixing and pumping low to …

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  • Concrete Mixing Methods and Concrete Mixers: State of the

    2001-4-1 · 2.1.2 Pan Mixers . All pan mixers work on basically the same principle []: a cylindrical pan (fixed or rotating) contains the concrete to be mixed, while one or two sets of blades rotate inside the pan to mix the materials and a blade scrapes the wall of the pan.The shapes of the blades and the axes of rotation vary. Figure 4 shows the different combinations of blade configurations and pan.

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  • A mathematical model reveals the influence of population ...

    2020-8-14 · In response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), some politicians have been keen to exploit the idea of achieving herd immunity. Countering this possibility are estimates derived from work on historical vaccination studies, which suggest that herd immunity may only be achieved at an unacceptable cost of lives. Because human populations are far from homogeneous ...

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  • AOYI OCHIENG CFD SIMULATION OF THE

    2017-2-3 · nes, which affect mixing efficiency in a stirred tank. The mixing efficiency can be determined from homo-genization energy, which is the product of the mixing time and the corresponding power dissipated [10]. A remarkable effort has been expended in simulating mixing time and power in flat-bottom tanks stirred using the Rushton turbine [11–14].

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  • The influence of molecular geometry on the efficiency of ...

    The focus is on studying the intricate role of the steric effects that influence molecular geometry, and the energy of electronic excited states on the photophysics of TADF. X-ray crystal data Fig. 2 shows the molecular structures obtained from X-ray experiments for molecules 6, 7 and 8.

    Get Price
  • Influence of Nozzle Geometry on the Noise of High-Speed ...

    2012-5-17 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

    Get Price
  • Numerical investigation of the influences of mixing ...

    2014-11-17 · In studying the influence of the mixing chamber length on the performance of the steam ejector, the primary, the secondary and the back pressure are fixed at 600 kPa, 15 kPa and 40 kPa, respectively. The mixing chamber length is changed without changing the convergence angle and the outlet diameter of the mixing chamber.

    Get Price
  • Influence of particle size and blender size on blending ...

    The effect of particle size enlargement and blender geometry down-scaling on the blend uniformity (BU) was evaluated by Discrete Element Method (DEM) to predict the blending performance of a binary granular mixture. Three 10 kg blending experiments differentiated by the physical properties specifica …

    Get Price
  • The Influence of Shroud and Cavity Geometry on Turbine ...

    2008-6-17 · Imperfections in the turbine annulus geometry, caused by the presence of the shroud and associated cavity, have a significant influence on the aerodynamics of the main passage flow path. In this paper, the datum shroud geometry, representative of steam turbine industrial practice, was systematically varied and numerically tested.

    Get Price
  • Experimental and numerical investigation of the influence ...

    2012-9-1 · To investigate the influence of the mixer diameter on ejector performance, a series of 12 measurement points was taken. Mixing sections with D MIX = 2 × 10 −3 m, D MIX = 3 × 10 −3 m, and D MIX = 5 × 10 −3 m were examined, each for the case with L MIX = 10 × D MIX, and α DIF = 5 °.

    Get Price
  • Numerical investigation of geometry parameters for

    2009-4-1 · Converging angle of mixing section: The ejector performance is very sensitive to θ especially near its optimum value, and a slight variation of θ has a great influence on the ejector performance. When the NXP is within its optimum range, the optimum converging angle is in the range of 1.45–4.2° with the primary flow pressure from 4.5 to 6 bar.

    Get Price
  • Influence of CO2 concentration on the performance of

    2021-1-1 · This paper investigated the influence of different CO 2 concentrations on the microstructural and mechanical development of reactive MgO cement (RMC) concrete. Combination of various analyses revealed the enhancement of hydrated magnesium carbonate (HMC) phases with relatively superior micro-mechanical properties as the CO 2 concentration increased from ambient (~0.04%) to …

    Get Price
  • The numerical analysis of the effect of geometrical ...

    2013-9-25 · The working fluid in the model is methane. The density of the methane is obtained using the ideal gas equation. The other properties, such as the specific heat, the thermal conductivity, the viscosity and the molecular weight, are held constant, as listed in Table 1.Standard wall function is used in the near wall treatment, which gives reasonably accurate results for a wall bounded with a very ...

    Get Price
  • Effects of Focus Geometry on the Hard Rock-Cutting ...

    Abrasive waterjets are being increasingly used in civil engineering for rock and concrete cutting, particularly for the demolition or repair of old structures. The energy of an abrasive waterjet is primarily provided by the accelerated abrasive. The momentum transfer during mixing and acceleration determines the abrasive velocity, which affects the cutting performance.

    Get Price