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Online since: January 2016
Authors: Marek Magát, Juraj Žilinský, Ivana Olekšáková
layer wind tunnel) in Florence (Prato), Italy with emphasis on comparison of the results with simulations in CFD (Computational fluid dynamics) software OpenFoam.
FOR INSTANCE, USING A COMPUTER SIMULATION TECHNIQUE AS CFD POWERED BY OPENFOAM ETC.
EXPERIMENT COMPARED TO CFD For simulation of atmospheric boundary layer we used software OpenFoam.
This software is free, open source CFD.
SIMULATION OF BOUNDARY LAYER IN CFD Simulation of boundary layer in OpenFoam was in real domain with real dimensions 1000x1000x500m.
Online since: May 2014
Authors: T. Theppaya, S. Prasertsan, T. Leevijit, P. Prasertsan, T. Srirugsa
CFD in Continuous Stirred Tank: Comparison between Rushton and Paddle Turbines T.
This paper describes three-dimensional computational fluid dynamics (CFD) simulations of POME flow in a laboratory-scale CSTR.
In this work, the flow field in the CSTR reactor having POME as media is modeled by time-dependent CFD simulation strategy using the Reynolds averaged Navier Stokes (RANS) equations [3,5].
The number of degrees of freedom in this simulation was 995,768.
The amount of elements and degree of freedom was selected to achieve acceptable results for less simulation time.
Online since: June 2014
Authors: Mohamed Sukri Mat Ali, Azli Abd Razak, Sheikh Ahmad Zaki, Ahmad Faiz Mohammad, Nur Farhana Mohamad Kasim
In performing CFD simulation, selection of the appropriate model is important by taking into account the computation time and modelling accuracy.
Simulation was performed using open source CFD software called OpenFOAM.
Conclusion A CFD simulation of a wind-induced ventilated building with single-sided opening is studied using RANS with standard k-ε model in this paper.
Best practice guideline for the CFD simulation of flows in the urban environment.
CFD simulations of natural ventilation behavior in high-rise buildings in regular and staggered arrangements at various spacing, Energ.
Online since: July 2012
Authors: Liang Chao Li
email: tchllc@126.com Keywords: stirred vessel; gas-liquid flow; gas residence time distribution; discrete phase model; numerical simulation Abstract: Gas-liquid flow in a stirred vessel was simulated numerically with computational fluid dynamics(CFD).
The numerical simulation study on gas-liquid flow in stirred vessel with CFD-DPM method has not found to be reported.
In present work, The CFD-DPM method is established to predict gas-liquid flow in a stirred vessel by using of CFD software Fluent 6.2.
Stirred vessel for simulation Impeller for simulation Fig.1 Schematic drawing of stirred vessel and impeller The grid-generation tool Gambit 2.3.16 is used to model the geometry and generate the tetrahedral meshes.
The total tetrahedral meshes are 737,547, which is adequate for the simulation.
Online since: July 2014
Authors: Aphaiwong Junchangpood
CFD Analysis of Energy Loss of Direction Control Valve in Electro-Hydraulic Systems with Inverter Aphaiwong Junchangpood Department of Teacher Training in Mechanical Engineering, King Mongkut’s University of Technology North Bangkok, Thailand aphaiwongj@kmutnb.ac.th Keywords: Energy Loss Characteristics, Directional Control Valves, Electro-Hydraulic Systems, CFD Simulation.
In addition, this paper presents CFD results.
Therefore, in this paper, those variant parameters of the directional control valve are defined by CFD simulation, and the flow behaviors are also demonstrated.
Numerical Analysis and CFD Modeling For solving this problem, numerical analysis with the computational fluid dynamics (CFD) is used.
In order to obtain the transient flow characteristics of the valve numerically, the simulations were performed using the commercial software SolidWorks 2013 with Flow Simulation.
Online since: October 2015
Authors: Lorenz Vandewaeter, Caroline Havill, Prin Kanyoo, Dominic Taunton, Evelyn Cropper, Simon Hancock, Antonino Bonanni, James I.R. Blake
Model Validation CFD Fuselage Simulation The developed model has been validated against a Computational Fluid Dynamic CFD model.
The CFD simulations have been performed on a fuselage geometry with the software CD-Adapco StarCCM+.
CFD Simulations Parameters Table 1.
Simulation parameters of the reference CFD simulations (CFD RANS VOF model).
Aircraft Ditching Numerical Simulation, ICAS 2006
Online since: August 2013
Authors: Lin Jia Yang, Yi Han Tao
After analyzing the calculated data obtained by the CFD simulation, a regression formula was built about the above parameters.
They are theory analysis, white noise simulation and empirical formula calculation.
Simulation Model of Regular Transverse wave For all flows, CFD solves conservation equations for mass and momentum [4].
Ship Parameters Length between perpendiculars[m] Molded breadth[m] Design draft / Depth[m] Depth[m] Displacement[m3] Design Speed[kn] 105 18m 5.4 8.35 5878.8 16.7 Fig. 1 Mesh of YUKUN Simulation Condition With the cut-cell mesh, we made the CFD simulation in commercial in commercial software FLUENT.
Simulation Result A group of experiment data was obtained with various wave amplitude and wave length.
Online since: November 2012
Authors: Yi Yi Wu, Xiao Gang Yang, Xiao Bing Huang, Vincent Barrioz, Giray Kartopu, Shafiul Monir, Stuart Irvine
The numerical simulations have been conducted using the CFD code – ANSYS Fluent.
Kuhn et al. [7] have conducted two-dimensional numerical simulation using CFD code – Fluent to investigate the hydrodynamics in a horizontal MOCVD reactor.
All simulations were conducted using the commercial CFD software ANSYS Fluent 6.3.26.
A computational fluid dynamics (CFD) code FLUENT [9] has been used for numerical calculations under various simulation conditions, includes fluid flow, concentration and temperature fields.
Conclusion Numerical simulations of the deposition of Cadmium Telluride in an in-line MOCVD have been conducted using CFD code -Fluent.
Online since: July 2011
Authors: Hai Li Liao, Ming Shui Li, Cun Ming Ma, Ming Liu, Mei Yu, Nan Luo
The analytical results were compared with the wind tunnel test data, it was shown from the study that the results of CFD simulation was good agreement with that of the wind tunnel test.
In this work, the aerodynamic performance of a long-span suspension bridge with a 1418m main span in China was studied, the static wind loading coefficients of the bridge during erection were investigated through wind tunnel test and CFD simulation.
Fig. 2 1:50 scale section model in wind tunnel (a) In body coordinate system (b) In wind coordinate system Fig. 3 Static wind loading coefficients of deck during erection CFD simulation of the static wind loading coefficients Governing equations.
It can be noted from the study that the results of CFD simulation were agreed well with the wind tunnel test data, it is possible to calculate the static wind loading coefficients of long-span suspension bridge through CFD simulation.
With the help of the results of CFD simulation and wind tunnel test, the optimal aerodynamic shape of the deck of long-span suspension bridge can be obtained.
Online since: August 2014
Authors: Hany Abdelkhalek, Qing Wang, Duan Feng Han, Liang Tian Gao
The results obtained from CFD analysis are compared with available standard results.
The simulations are supposed to be converged when the residual is below 10-5.
the following turbulence models adopted to select the best modeling methodology for the simulation of marine hulls; 1.
[2] Katuri Samarpan ,computational estimation and RANS simulation estimation and RANS simulation of free surface flow around a ship hull, International Journal of Mechanical and Industrial Engineering (IJMIE) ISSN No. 2231 –6477, Vol-2, Iss-3, 2012
Wilcox, Turbulence Modelling for CFD, DCW Industries, (1993)
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