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Online since: April 2022
Authors: Kamal Amghar, Abdelkader Filali, Najim Salhi, Jamal-Eddine Salhi
Numerical simulations are carried out to study the dynamic and thermal behavior influenced by the control parameters.
Simulations were performed on a machine with Intel Xeon CPU, 3.40 GHz and 64 GB of RAM.
Koseff, Numerical simulation of three dimensional flow in a cavity, International Journal for Numerical Methods in Fluids. 5, 6. (1985) 561-575
Salhi, Numerical simulation of forced convection turbulent in a channel with transverse baffles.
Benyoucef, Heat Transfer in Air Flow Past a Bottom Channel Wall-Attached Diamond-Shaped Baffle–Using a CFD Technique.
Simulations were performed on a machine with Intel Xeon CPU, 3.40 GHz and 64 GB of RAM.
Koseff, Numerical simulation of three dimensional flow in a cavity, International Journal for Numerical Methods in Fluids. 5, 6. (1985) 561-575
Salhi, Numerical simulation of forced convection turbulent in a channel with transverse baffles.
Benyoucef, Heat Transfer in Air Flow Past a Bottom Channel Wall-Attached Diamond-Shaped Baffle–Using a CFD Technique.
Online since: September 2008
Authors: Roland Madar, Michel Pons, Jean Marc Dedulle, Elisabeth Blanquet, Peter J. Wellmann, Shin Ichi Nishizawa, Didier Chaussende
a
michel.pons@inpg.fr, b s.nishizawa@aist.go.jp, c
peter.wellmann@ww.uni-erlangen.de
Keywords: Modeling, Simulation, Mass transport, Growth, C/Si ratio
Abstract.
Modeling and simulation of the SiC growth processes, Physical Vapor Transport (PVT), Chemical Vapor Deposition (CVD), are sufficiently mature to help building new process equipment or up-scaling old ones.
This paper will address two issues on modeling and simulation.
Modeling and simulation of the growth rate and thickness uniformity is now mature and based on efficient thermodynamic and kinetic databases [13-18].
A precise control of the actual C/Si ratio over the substrate is only possible by a complete modeling and simulation of the growth apparatus.
Modeling and simulation of the SiC growth processes, Physical Vapor Transport (PVT), Chemical Vapor Deposition (CVD), are sufficiently mature to help building new process equipment or up-scaling old ones.
This paper will address two issues on modeling and simulation.
Modeling and simulation of the growth rate and thickness uniformity is now mature and based on efficient thermodynamic and kinetic databases [13-18].
A precise control of the actual C/Si ratio over the substrate is only possible by a complete modeling and simulation of the growth apparatus.
Online since: January 2016
Authors: Luděk Beneš, Hynek Řezníček
Fig. 6: The vertical distribution of PM10 concentration in x1 = 150 m for different r (without turbulent
transport), C scale is logarithmic
Fig. 7: The dependence of concentration on drag coefficient - in height 2 m and 10 mSummary
The numerical scheme for ABL flows with passive concentration has been developed and they has
been used successfully for simulation of the flow over vegetative barrier.
Kozel: Numerical simulation of flow over barriers in complex terrain , Il Nuovo Cimento, Vol: 31 C(5-6), p. 619-632, (2008) [3] V.
Bodnar et al.: Application of compact finite-difference schemes to simulations of stably stratified fluid flows, Appl.
Stathopoulas: Turbulent Schmidt Numbers for CFD Analysis with Various Types of Flow-field, Atmospheric Environment, Vol. 41 (2007) [9] S.
Maghirang: Numerical simulation of airflow and particle collection by vegetative barriers, Engineering Applications of Computational Fluid Mechanics, (2012) [11] B.
Kozel: Numerical simulation of flow over barriers in complex terrain , Il Nuovo Cimento, Vol: 31 C(5-6), p. 619-632, (2008) [3] V.
Bodnar et al.: Application of compact finite-difference schemes to simulations of stably stratified fluid flows, Appl.
Stathopoulas: Turbulent Schmidt Numbers for CFD Analysis with Various Types of Flow-field, Atmospheric Environment, Vol. 41 (2007) [9] S.
Maghirang: Numerical simulation of airflow and particle collection by vegetative barriers, Engineering Applications of Computational Fluid Mechanics, (2012) [11] B.
Online since: December 2012
Authors: Qi Fen Li, Tao Li, Cui Cui Pan, Wei Dong Sun, Zhi Tian Zhou
In this paper, the CFD simulation software FLUENT to make the simulation study on the CPV cooling system (cell, heat sink and radiator) is adopted.
According to the actual structure size of the radiator which will used in the future test, the simulation software to build a corresponding physical model is adopted.
Comparative analysis on radiator simulation results In order to make a comparative analysis on the structure and cooling effects of several different types of radiators, the cell and heat sink surface temperature simulation results are summarized in Fig. 25 and Fig. 26.
Cooling system simulation after optimization In can be seen from the fin and heat pipe radiator simulation results that heat pipe has significant temperature uniformity effect and can overcome the cell temperature nonuniformity; fin has significant cooling effect and different fin structures have different cooling effects.
Modelling and simulation of InGaP solar cells under solar concentration: Series resistance measurement and prediction.
According to the actual structure size of the radiator which will used in the future test, the simulation software to build a corresponding physical model is adopted.
Comparative analysis on radiator simulation results In order to make a comparative analysis on the structure and cooling effects of several different types of radiators, the cell and heat sink surface temperature simulation results are summarized in Fig. 25 and Fig. 26.
Cooling system simulation after optimization In can be seen from the fin and heat pipe radiator simulation results that heat pipe has significant temperature uniformity effect and can overcome the cell temperature nonuniformity; fin has significant cooling effect and different fin structures have different cooling effects.
Modelling and simulation of InGaP solar cells under solar concentration: Series resistance measurement and prediction.
Online since: December 2012
Authors: Hong Zhou, Fu Ming Zhang, Lin Yi Zhang, De Guo Zhang
As to 300t converter blowing process is studied in comprehensive and systematic way by means of the theoretical research of metallurgical process, analysis of process flow and function and engineering optimization of CFD numerical simulation, as well as precise control technology and safety operation technology on BOF gas dry dedusting process in order to realize goals of stable operation process, high-efficiency energy recovery and obvious reduction of emission.
Online since: February 2014
Authors: Ozgen Acikgoz, Olcay Kincay, Zafer Utlu
Previously reported studies by many researchers have found that different usages of convective heat transfer coefficient (CHTC) correlations in heating system simulations have considerable impacts on calculated heating load in buildings.
In this study, a modeled room was numerically heated from one vertical wall and cooled from the opposite wall in order to create a real room simulation.
CHTCs and Nusselt numbers of a real size room with the dimensions of 6.00 by 2.85 by 6.00 were found with FLUENT CFD and graphics of change were drawn.
Introduction Although conduction and radiation heat transfer simulation models in room size enclosures have been thoroughly described by numerous researchers, in convection there are still some uncertainties.
Nonetheless, it was asserted that choice of these parameters in building simulation programs was limited due to the common single node approach.
In this study, a modeled room was numerically heated from one vertical wall and cooled from the opposite wall in order to create a real room simulation.
CHTCs and Nusselt numbers of a real size room with the dimensions of 6.00 by 2.85 by 6.00 were found with FLUENT CFD and graphics of change were drawn.
Introduction Although conduction and radiation heat transfer simulation models in room size enclosures have been thoroughly described by numerous researchers, in convection there are still some uncertainties.
Nonetheless, it was asserted that choice of these parameters in building simulation programs was limited due to the common single node approach.
Research of Warp Structure Modelling for Calculation of Two Guidebars Warp Knitted Fabric Parameters
Online since: December 2024
Authors: Dieu Huong Chu
Structural simulation is important for designing warp knitted fabric because of their typically three-dimensional structures.
Zahra Ettehadi [8] investigated the air permeability of warp knitted fabrics using experimental and numerical simulation methods.
The authors had coupled the investigated geometry models with a computational fluid dynamics model for flow simulation.
Recently, the 3D modelling method and software were used widely for simulation of the warp knitted structures.
Zarrebini, Experimental and CFD Analysis of Air Permeability of Warp-knitted Structures, Fibers and Polymers, Vol.21 (2020) 1362-1371
Zahra Ettehadi [8] investigated the air permeability of warp knitted fabrics using experimental and numerical simulation methods.
The authors had coupled the investigated geometry models with a computational fluid dynamics model for flow simulation.
Recently, the 3D modelling method and software were used widely for simulation of the warp knitted structures.
Zarrebini, Experimental and CFD Analysis of Air Permeability of Warp-knitted Structures, Fibers and Polymers, Vol.21 (2020) 1362-1371
Online since: August 2010
Authors: Ying Zhou
The computation is performed by using
coupled fluid-thermal FEM simulation of FLOTRAN module in ANSYS 6.0.
Involving fields of flowing melt in front-box and nozzle, its modeling for simulation is much more complicated than only at roll-casting area with other processing methods[1-3].
Accounting of both the nozzle and front-box fields will yield more accurate simulation results.
Multiphase Phenomena and CFD Modeling and Simulation in Materials Processes Symposium. (2004), p. 325-34
[11] Liang Tao: Research on Numerical Simulation of Heat Transfer and Thermal Crowning of Roll Shell during Twin-roll Casting, Ph.D. thesis.
Involving fields of flowing melt in front-box and nozzle, its modeling for simulation is much more complicated than only at roll-casting area with other processing methods[1-3].
Accounting of both the nozzle and front-box fields will yield more accurate simulation results.
Multiphase Phenomena and CFD Modeling and Simulation in Materials Processes Symposium. (2004), p. 325-34
[11] Liang Tao: Research on Numerical Simulation of Heat Transfer and Thermal Crowning of Roll Shell during Twin-roll Casting, Ph.D. thesis.
Online since: July 2009
Authors: Hemant Bhatta, Tae Kyong Kong, Gary Rosengarten
This was verified
by conducting Computational Fluid Dynamics (CFD) modeling [using CFD-ACE; www.cdfrc.com]
of the setup, where, a second order spatial differencing scheme was chosen for the solver as it
achieves a high order of accuracy.
The simulation results were similar to the theoretical prediction as described by Ficks law (Eq. 4).
The simulation results were similar to the theoretical prediction as described by Ficks law (Eq. 4).
Online since: July 2014
Authors: V. Jagan, D. Santhosh Kumar, Satheesh A, K. Mohan Babu
Later Minzer et al. (2006) added transient simulation by using the simple model.
Liquid flow and phase holdup-measurement and CFD modeling for two-and three-phase bubble columns (2002), J.
,CFD modeling of flow profiles and interfacial phenomena in two-phase flow in pipes, (2006) J.Chemical Engineering and Processing 45, 1, 55–65
Liquid flow and phase holdup-measurement and CFD modeling for two-and three-phase bubble columns (2002), J.
,CFD modeling of flow profiles and interfacial phenomena in two-phase flow in pipes, (2006) J.Chemical Engineering and Processing 45, 1, 55–65