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Online since: October 2008
Authors: Huan Wu Sun, Shi Chun Yang
Therefore, the shearing stress and relative velocity simulations were executed using the commercial
computational fluid dynamics (CFD) software FLOTRAN developed by ANSYS.
Fig. 2 Finite element mesh model The CFD Model.
Considering the working zone was axial symmetric, quarter of the annular region between the work-piece and the wall of container was selected as the analysis region, and the FLUID142 was selected as the CFD element.
Based on the above CFD model, the velocity isolines (Fig. 3) and velocity vectorgraphs (Fig. 4) of FMA with the work-piece rotated at the rotation speed of 600r/min, 900r/min and1600r/min respectively were obtained.
There are some differences between the simulation results and the static yield shearing stress.
Fig. 2 Finite element mesh model The CFD Model.
Considering the working zone was axial symmetric, quarter of the annular region between the work-piece and the wall of container was selected as the analysis region, and the FLUID142 was selected as the CFD element.
Based on the above CFD model, the velocity isolines (Fig. 3) and velocity vectorgraphs (Fig. 4) of FMA with the work-piece rotated at the rotation speed of 600r/min, 900r/min and1600r/min respectively were obtained.
There are some differences between the simulation results and the static yield shearing stress.
Online since: June 2014
Authors: Nor Azwadi Che Sidik, Siti Aisyah Razali
One of the alternative method in CFD is the lattice Boltzmann method.
Unlike the traditional CFD methods, which solve the conservation equations of macroscopic properties (i.e.
The excellent match of the present results with the present study demonstrate it validity for the simulation.
Dass, Simulation of Incompressible flows in two-sided lid-driven square cavities.
Part I – FDM, CFD Letters. 2 (2010) 1-12
Unlike the traditional CFD methods, which solve the conservation equations of macroscopic properties (i.e.
The excellent match of the present results with the present study demonstrate it validity for the simulation.
Dass, Simulation of Incompressible flows in two-sided lid-driven square cavities.
Part I – FDM, CFD Letters. 2 (2010) 1-12
Online since: February 2012
Authors: Feng Gao, Wei Yan Zhong
China
ajdgaofeng@163.com, bWeiyanzh@163.com
Keywords: Multi-blade Centrifugal Fan, Unsteady Flow, Pressure Pulsation, Aerodynamic Noise, Numerical simulation
Abstract.
Numerical simulation of the three-dimensional steady and unsteady turbulent flow in the whole flow field of a multi-blade centrifugal fan is performed.
Along with the development of the computer technology and the computational fluid dynamics, the CFD technology is replacing part of the experiment gradually.
In order to make sure the stability of the unsteady simulation, the steady numerical simulation is done at first based on the same mesh subdivision, after that, the results of the steady simulation are used as the beginning field to proceed with the whole passage unsteady simulation inside the multi-blade centrifugal fan.
Simulation results and analysis Velocity field.
Numerical simulation of the three-dimensional steady and unsteady turbulent flow in the whole flow field of a multi-blade centrifugal fan is performed.
Along with the development of the computer technology and the computational fluid dynamics, the CFD technology is replacing part of the experiment gradually.
In order to make sure the stability of the unsteady simulation, the steady numerical simulation is done at first based on the same mesh subdivision, after that, the results of the steady simulation are used as the beginning field to proceed with the whole passage unsteady simulation inside the multi-blade centrifugal fan.
Simulation results and analysis Velocity field.
Online since: December 2016
Authors: Dagmara Čeheľová, Boris Bielek, Daniel Szabó
On the building Panorama City was realized a wind study by using CFD simulation software OpenFOAM.
The values of the external wind pressure coefficients Cpe calculated by using CFD simulation at various wind directions were summarized in Table 1.
External pressure coefficients from CFD simulation.
Wind direction External pressure coefficients Cpe [-] 0° 45° 90° 135° 180° Minimum -2.88 -2.44 -3.85 -2.96 -2.80 Maximum 1.82 1.71 2.37 2.46 2.95 The results obtained from the CFD simulation were compared with wind tunnel data.
Blocken, CFD simulation of wind-induced pressure coefficients on buildings with and without balconies: Validation and sensitivity analysis, Build.
The values of the external wind pressure coefficients Cpe calculated by using CFD simulation at various wind directions were summarized in Table 1.
External pressure coefficients from CFD simulation.
Wind direction External pressure coefficients Cpe [-] 0° 45° 90° 135° 180° Minimum -2.88 -2.44 -3.85 -2.96 -2.80 Maximum 1.82 1.71 2.37 2.46 2.95 The results obtained from the CFD simulation were compared with wind tunnel data.
Blocken, CFD simulation of wind-induced pressure coefficients on buildings with and without balconies: Validation and sensitivity analysis, Build.
Online since: August 2013
Authors: Xian Hong Meng, Qiu Ying Zhao
Numerical wind tunnel technology is the method to use of computational fluid dynamics (CFD) method to simulate the wind field around the structure change on the computer and calculate wind load on the surface of the structure.
Wei Xu[8]explore the feasibility of CFD numerical simulation average wind pressure on complex shape building surface through the numerical simulation research, puts forward the grids method to reduce the workload of modeling multiple wind direction angle effectively.
Main time domain simulation method are the linear filtering method, harmonic superposition method simulation and inverse Fourier transform method and wavelet analysis.
Many domestic scholars combinate them together for many improved methods and apply it to the structure to get the wind speed time history simulation program.
Simulation according to the actual wind environment can avoid the deficiency of the wind tunnel test.
Wei Xu[8]explore the feasibility of CFD numerical simulation average wind pressure on complex shape building surface through the numerical simulation research, puts forward the grids method to reduce the workload of modeling multiple wind direction angle effectively.
Main time domain simulation method are the linear filtering method, harmonic superposition method simulation and inverse Fourier transform method and wavelet analysis.
Many domestic scholars combinate them together for many improved methods and apply it to the structure to get the wind speed time history simulation program.
Simulation according to the actual wind environment can avoid the deficiency of the wind tunnel test.
Online since: November 2012
Authors: Chen Chen Liu, Makoto Obata
While adhesion of airborne sea salt particles to bridge structures are simulated locally by a CFD analysis, the large scale analysis yields a boundary conditions of the local analysis and is given by a part of a mesoscale meteorological analysis.
In the local analysis (representative length scale is about 102m), adhesion of airborne particles is simulated by two phase flow analysis using computational fluid dynamics (CFD) (See [1,2] for details).
Fig. 3 illustrates an example of the simulation of adhesion of airborne particles to a bridge girder [1].
Therefore, WRF/Chem can provide reasonable boundary and initial conditions for elaborate local analyses based on CFD in these areas.
Goto, (2008) Numerical simulation of sea salt particulate matter adhesion on bridge surfaces by two-phase flow analysis, J.
In the local analysis (representative length scale is about 102m), adhesion of airborne particles is simulated by two phase flow analysis using computational fluid dynamics (CFD) (See [1,2] for details).
Fig. 3 illustrates an example of the simulation of adhesion of airborne particles to a bridge girder [1].
Therefore, WRF/Chem can provide reasonable boundary and initial conditions for elaborate local analyses based on CFD in these areas.
Goto, (2008) Numerical simulation of sea salt particulate matter adhesion on bridge surfaces by two-phase flow analysis, J.
Online since: January 2013
Authors: Zhi Long Liu, Fang Wang, Lian Jing Niu, Chen Xia Li, Guo Min Fu
In this paper, by the way of numerical simulation, the ground surface temperature field and indoor air temperature field of three different types of floor radiant system are compared using the CFD software FLUENT.
Then the CFD software FLUENT is used to get the numerical calculation result, which can also processed by the software.
Conclusions The temperature in the simulation process in this paper is a little higher.
Piippo, Uneven gridding of thermal nodal networks in floor heating simulations, Energy and Buildings 39 (2007) 1107–1114
Simulation analysis on the impact of coverings on floor heating [J].
Then the CFD software FLUENT is used to get the numerical calculation result, which can also processed by the software.
Conclusions The temperature in the simulation process in this paper is a little higher.
Piippo, Uneven gridding of thermal nodal networks in floor heating simulations, Energy and Buildings 39 (2007) 1107–1114
Simulation analysis on the impact of coverings on floor heating [J].
Online since: July 2011
Authors: Cui Liu, Yin Hu Qu
At present time, FLUENT is one of the best modern CFD software which can be used to simulate the inner flow filed of nozzle.
Establishment of the Numerical Model and Simulation of the Inner Flow Field of Hema-Type ATY Nozzle Establishment of the Numerical Model.
Simulation of the Inner Flow Field of Hema-Type ATY Nozzle.
All the residual values are within 10-3 when the number of the iterations reaches 325.So the simulation are completed and the results are correct.
One Validation Case of the CFD Software Fluent: Part of the Development Effort of a new Reactor Analysis Tool[C]//International Conference on Nuclear Engineering, Proceedings, ICONE, P913-919. (2002) [3] Liang Zhao.
Establishment of the Numerical Model and Simulation of the Inner Flow Field of Hema-Type ATY Nozzle Establishment of the Numerical Model.
Simulation of the Inner Flow Field of Hema-Type ATY Nozzle.
All the residual values are within 10-3 when the number of the iterations reaches 325.So the simulation are completed and the results are correct.
One Validation Case of the CFD Software Fluent: Part of the Development Effort of a new Reactor Analysis Tool[C]//International Conference on Nuclear Engineering, Proceedings, ICONE, P913-919. (2002) [3] Liang Zhao.
Online since: July 2013
Authors: Wen Yan Shan, Guang Wei Zhu, De Dong Hu
Numerical Simulation of Counter-current Flow Field in Double Packing Rotating Packed Bed
D.D.
We propose to analyze the behavior of three-phase (liquid) flows with the aid of CFD.
[2] Hugo Llerena-Chavez, Faiçal Larachi, Analysis of flow in rotating packed beds via CFD simulations—Dry pressure drop and gas flow maldistrbution.Canada .
[3] fei Yi, Jianfeng Chen,Numerical simulation and eperiment on pressure drop of a co-current rorating packed bed. (2008) 56-59
[5] Zuyu Wu,Numerical simulation on pressure drop of rotating packed bed with triangular spiral packing. 28 (2011) 704-708 [6] Xiaoqing Zhang, Simulation and analysis of gas-liquid two phase flow field in rotating packed bed.
We propose to analyze the behavior of three-phase (liquid) flows with the aid of CFD.
[2] Hugo Llerena-Chavez, Faiçal Larachi, Analysis of flow in rotating packed beds via CFD simulations—Dry pressure drop and gas flow maldistrbution.Canada .
[3] fei Yi, Jianfeng Chen,Numerical simulation and eperiment on pressure drop of a co-current rorating packed bed. (2008) 56-59
[5] Zuyu Wu,Numerical simulation on pressure drop of rotating packed bed with triangular spiral packing. 28 (2011) 704-708 [6] Xiaoqing Zhang, Simulation and analysis of gas-liquid two phase flow field in rotating packed bed.
Online since: March 2025
Authors: Abdulla Shuaib, Lokesh Singh
The reference paper describes the data used, the simulation set up and we demonstrate that our simulation results is consistent with the existing data.
Transparent 3D View 2 Stress Simulation A.
Solid works flow simulation was used to comparison.
For the simulation the blade pitch was fixed at 4 degrees.
Khatri, Study of Dynamics of Shock-Vortex Interaction on Flap Wing by CFD tool, International Journal of Scientific & Engineering Research, IJSER Publishing, Houston, USA, Volume 10, Issue 2, PP -1540-1548, February 2019. https://www.citefactor.org/journal/pdf/Study-of-Dynamics-of-Shock-Vortex-Interaction-on-Flap-Wing-by-CFD-tool.pdf
Transparent 3D View 2 Stress Simulation A.
Solid works flow simulation was used to comparison.
For the simulation the blade pitch was fixed at 4 degrees.
Khatri, Study of Dynamics of Shock-Vortex Interaction on Flap Wing by CFD tool, International Journal of Scientific & Engineering Research, IJSER Publishing, Houston, USA, Volume 10, Issue 2, PP -1540-1548, February 2019. https://www.citefactor.org/journal/pdf/Study-of-Dynamics-of-Shock-Vortex-Interaction-on-Flap-Wing-by-CFD-tool.pdf