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Online since: September 2003
Authors: Roland Madar, Michel Pons, Ludovic Charpentier, Francis Baillet, Didier Chaussende, Etienne Pernot
Modeling and simulation were used to evaluate a new reactor concept for SiC bulk
growth.
Pyrometric measurements Numerical simulation The electromagnetic, flow and temperature fields are analyzed by finite volume methods using CFD-ACE software.
Simulations Results Numerical simulation of the process is used to visualize gas velocity and thermal distribution in the reactor.
The simulation results with and without the gas flow are shown in fig. 2.
These simulations are validated by CVD deposition experiments on the lower part and by boule growth experiments [3,4].
Pyrometric measurements Numerical simulation The electromagnetic, flow and temperature fields are analyzed by finite volume methods using CFD-ACE software.
Simulations Results Numerical simulation of the process is used to visualize gas velocity and thermal distribution in the reactor.
The simulation results with and without the gas flow are shown in fig. 2.
These simulations are validated by CVD deposition experiments on the lower part and by boule growth experiments [3,4].
Online since: June 2014
Authors: Li Bai, Peng Xuan Wang
Simulation on Ground Temperature Change of GSHP System
in Severe Cold Regions
Li Bai1, a, Peng-xuan Wang1,b
1Jilin Jianzhu University, Changchun China 130118
abaili0308@163.com, bwpx890307@163.com
Keywords: Ground-source heat pump; ground heat; thermal equilibrium;
Abstract.
In this thesis, for the case of ground-source heat pump system was used in a project of university library in Changchun, which city in the severe cold region.According to the thermo physical parameters of soil about the library and the simulation results of the dynamic load on it by the simulate software DEST, then using GAMBIT software to establish physical model for parts of the well group, and hourly simulate the 5 years operation of some heat exchanger of the well group by using FLUENT software, so that the simulation results of applicability of the thermal compensation method in severe cold area can be demonstrated.
By using CFD what is a special pre-processing software Gambit to establish model and dividing grid as show in Figure 4, the simulation software to read the grid using Fluent heat pump operation, for five years the change of soil temperature field.
The simulation runtime system physical parameters show Table 2.
Numerical Simulation on Phase Change Heat Transfer of G round -Source Heat Pump System in Cold Region.
In this thesis, for the case of ground-source heat pump system was used in a project of university library in Changchun, which city in the severe cold region.According to the thermo physical parameters of soil about the library and the simulation results of the dynamic load on it by the simulate software DEST, then using GAMBIT software to establish physical model for parts of the well group, and hourly simulate the 5 years operation of some heat exchanger of the well group by using FLUENT software, so that the simulation results of applicability of the thermal compensation method in severe cold area can be demonstrated.
By using CFD what is a special pre-processing software Gambit to establish model and dividing grid as show in Figure 4, the simulation software to read the grid using Fluent heat pump operation, for five years the change of soil temperature field.
The simulation runtime system physical parameters show Table 2.
Numerical Simulation on Phase Change Heat Transfer of G round -Source Heat Pump System in Cold Region.
Online since: August 2013
Authors: Yang Liu, Fu Ting Bao, Hai Feng Hu, Wei Hua Hui
Recently, a number of works related to film cooling was reported both experiments and computational fluid dynamic (CFD) simulations have been investigated.
As the CFD developed, the numerical tools give another way to analysis the film cooling.
Fig.4 Buckling modal including the thermal load Fig.5 shows that the simulation result both including and ignoring the thermal load.
As the CFD developed, the numerical tools give another way to analysis the film cooling.
Fig.4 Buckling modal including the thermal load Fig.5 shows that the simulation result both including and ignoring the thermal load.
Online since: January 2013
Authors: Jun Peng Shao, Yan Qin Zhang, Gui Tao Sun, Xiao Dong Yang, Chun Xi Dai, Rui Li
Adopt finite volume method, simulation the hydrostatic bearing internal fluid temperature field under different flow rates on the speed of 6R / min.
Numerical simulation hydrostatic thrust bearing oil film temperature field, can find a general high temperature region, and then take effective control temperature.
The numerical simulation result does not appear divergence phenomena, indicates that the equation using finite volume method is stable.
Numerical simulation of temperature field in large size hydrostatic bearing.
Static Flow Simulation of Hydrostatic Bearing Ellipse and Sector Curve Based on Fluent.
Numerical simulation hydrostatic thrust bearing oil film temperature field, can find a general high temperature region, and then take effective control temperature.
The numerical simulation result does not appear divergence phenomena, indicates that the equation using finite volume method is stable.
Numerical simulation of temperature field in large size hydrostatic bearing.
Static Flow Simulation of Hydrostatic Bearing Ellipse and Sector Curve Based on Fluent.
Online since: January 2014
Authors: Zaliman Sauli, Steven Taniselass, Vithyacharan Retnasamy, K. Anwar, Nooraihan Abdullah, Nor Shakirina Nadzri, Tan Hsio Mei
In this paper, numerical simulation of fluid flow in Forward Facing Step (FFS) configuration was performed to investigate velocity profile after the step.
The velocity profile analysis was conducted Computational Fluid Dynamics (CFD) software.
Methodology Intially, the grid independence test was performed before the simulation process [7].
Reynolds(Re) number employed for this simulation was 100 whilethe step heights, hused were 1µm and 3µm.
Diyana and Tijjani Adam,“Numerical Simulation of Microfluidic Devices,” IEEE-ICSE2012 Proc., 2012 [4] XiangdongXue, Mayur K.
The velocity profile analysis was conducted Computational Fluid Dynamics (CFD) software.
Methodology Intially, the grid independence test was performed before the simulation process [7].
Reynolds(Re) number employed for this simulation was 100 whilethe step heights, hused were 1µm and 3µm.
Diyana and Tijjani Adam,“Numerical Simulation of Microfluidic Devices,” IEEE-ICSE2012 Proc., 2012 [4] XiangdongXue, Mayur K.
Online since: January 2012
Authors: Wei Dong Shi, Fei Long, De Sheng Zhang, Yan Xu
Fig.1 Axial flow impeller blade wear
In order to analyse the erosion problems of the axial pump impeller, the movement of solid particles inside the impeller was investigated by CFD numerical simulation, and the accuracy of numerical results is verified by the wear experiment.
The NS1250 submersible axial flow pump made in Nanjing Lanshen Pump Group is used for the simulation.
The curves of efficiency and head obtained by numerical simulation and experiment are shown in Fig.4.
Numerical Simulation of Erosion and Partical Motion Trajectory in Centrifugal Pump[J].
Simulation of solid-liquid two-phase turbulent flow in double-channel pump based on mixture model[J].
The NS1250 submersible axial flow pump made in Nanjing Lanshen Pump Group is used for the simulation.
The curves of efficiency and head obtained by numerical simulation and experiment are shown in Fig.4.
Numerical Simulation of Erosion and Partical Motion Trajectory in Centrifugal Pump[J].
Simulation of solid-liquid two-phase turbulent flow in double-channel pump based on mixture model[J].
Online since: January 2012
Authors: Adam Cwudziński, Jan Jowsa
The CFD (Computational Fluid Dynamic) method allows information on physical, chemical and hydrodynamic phenomenon in the metallurgical processes to be obtained.
The subject of simulation was a one-strand tundish of a nominal capacity of 30 tons.
The computer simulations were performed for unsteady and nonisothermal conditions.
Simulation tests of steel flow and NMI behaviour were performed in the Ansys-FluentÒ program.
The program Ansys-FluentÒ was used to computer simulation.
The subject of simulation was a one-strand tundish of a nominal capacity of 30 tons.
The computer simulations were performed for unsteady and nonisothermal conditions.
Simulation tests of steel flow and NMI behaviour were performed in the Ansys-FluentÒ program.
The program Ansys-FluentÒ was used to computer simulation.
Online since: June 2014
Authors: Jian Ping Yuan, Bang Lun Zhou, Wen Ting Sun, Yin Luo
Wei et al.[2] have made simulation analysis on fluid in the three-way connection pipe of the oil industry, which offered theoretical basis on fluid transportation in the petroleum pipeline.
Tab.1 Schemes of pipe diameters schemes pipe diameters[mm] main pipe branchpipe 1 1000 800 2 1000 600 3 800 600 Fig.1 Structural drawing of reducing cross Meshing The mesh generation wasconducted by the ANSYS ICEM CFD 14.5 software.
Numerical simulation of turbulence T-typed tee based on FLUENT software[J].
Numerical simulation and analysis of fluid in three-way connection pipe based on Fluent Software [J].
Numerical simulation and structure optimization on internal flow field in T-typed Tee[J].XinjiangWater Resources2010, 4:1-3.In Chinese
Tab.1 Schemes of pipe diameters schemes pipe diameters[mm] main pipe branchpipe 1 1000 800 2 1000 600 3 800 600 Fig.1 Structural drawing of reducing cross Meshing The mesh generation wasconducted by the ANSYS ICEM CFD 14.5 software.
Numerical simulation of turbulence T-typed tee based on FLUENT software[J].
Numerical simulation and analysis of fluid in three-way connection pipe based on Fluent Software [J].
Numerical simulation and structure optimization on internal flow field in T-typed Tee[J].XinjiangWater Resources2010, 4:1-3.In Chinese
Online since: May 2005
Authors: Albrecht Winnacker, Peter J. Wellmann, Thomas L. Straubinger, Elisabeth Blanquet, Jean Marc Dedulle, Michel Pons, Sakwe Aloysius Sakwe, Holger Schmitt, Patrick Desperrier, Ulrike Künecke, Ralf Müller
We discuss the experimental implementation of
the extra gas pipe and present numerical simulations of temperature field and mass transport in
the new growth configuration.
temperature field and mass transport, was carried out using the commercial CFD-ACE+ software package (CFD Research Corp.) [8]. 2D numerical simulations were performed in order to explain the mixing of the additional gas stream with the SiC physical vapor mass transport.
SiC crystal photographs and numerical simulation of the corresponding SiC gas species concentration in the M-PVT configuration for three different additional gas fluxes.
This experimental result was also predicted by the computer simulation.
The rather precise prediction of the numerical simulation of the experiments enabled us to better understand the M-PVT process from a fluid mechanical point of view.
temperature field and mass transport, was carried out using the commercial CFD-ACE+ software package (CFD Research Corp.) [8]. 2D numerical simulations were performed in order to explain the mixing of the additional gas stream with the SiC physical vapor mass transport.
SiC crystal photographs and numerical simulation of the corresponding SiC gas species concentration in the M-PVT configuration for three different additional gas fluxes.
This experimental result was also predicted by the computer simulation.
The rather precise prediction of the numerical simulation of the experiments enabled us to better understand the M-PVT process from a fluid mechanical point of view.
Online since: June 2014
Authors: Chong Liu, Xiao Zeng Xie, Jia Dian Wang
The transient flow field analysis is made using the method of large eddy simulation to obtain the time-domain information of the pressure pulsation.
a Entity structure model b Sectional view of the structure Fig.1 The three-dimensional entity model Flow field analysis Extract the valve the inner surface of the solid models get fluid domain in figure 2, and the flow field is full hexahedron mesh structure is divided by ANSYS ICEM CFD software.
Among them, the throat area of valve is a larger pressure gradient, and the flow field has a very striking, in order to guarantee the accuracy of numerical simulation of the throat, throat grid for the partial encryption processing.
The analysis type is set to transient analysis, simulated the total time of 0.1 seconds, the time step is set to; Choice for large eddy simulation as turbulence model.
The large eddy simulations is initialized using the steady state analysis results in the analysis.
a Entity structure model b Sectional view of the structure Fig.1 The three-dimensional entity model Flow field analysis Extract the valve the inner surface of the solid models get fluid domain in figure 2, and the flow field is full hexahedron mesh structure is divided by ANSYS ICEM CFD software.
Among them, the throat area of valve is a larger pressure gradient, and the flow field has a very striking, in order to guarantee the accuracy of numerical simulation of the throat, throat grid for the partial encryption processing.
The analysis type is set to transient analysis, simulated the total time of 0.1 seconds, the time step is set to; Choice for large eddy simulation as turbulence model.
The large eddy simulations is initialized using the steady state analysis results in the analysis.