Computational Grid is explained here.
Calculation setups: Part 1 and Part 2 of this series of articles.
A steady-state simulation of Ahmed body was done by myLTSPimpleFoam and simpleFoam with realizableKE turbulence model, and the results of them are compared with each other.
・Drag coefficients
Drag coefficients are compared using the result of wind tunnel tests [1] as reference data in the table below.
EXP: experimental data from [1]
rKE: result of simpleFoam with realizableKE turbulence model
LTSrKE: result of myLTSPimpleFoam with realizableKE turbulence model
・Ux distribution on the y=0 plane and the z=0.144 plane
References
1. S.R. Ahmed, G. Ramm, Some Salient Features of the Time-Averaged Ground Vehicle Wake, SAE-Paper 840300, 1984
Calculation setups: Part 1 and Part 2 of this series of articles.
A steady-state simulation of Ahmed body was done by myLTSPimpleFoam and simpleFoam with realizableKE turbulence model, and the results of them are compared with each other.
・Drag coefficients
Drag coefficients are compared using the result of wind tunnel tests [1] as reference data in the table below.
EXP: experimental data from [1]
rKE: result of simpleFoam with realizableKE turbulence model
LTSrKE: result of myLTSPimpleFoam with realizableKE turbulence model
Drag Coefficients
・Pressure distribution on the y=0 plane and the z=0.144 plane
pressure on y=0 plane (simpleFoam)
pressure on y=0 plane (myLTSPimpleFoam)
pressure on z=0.144 plane (simpleFoam)
pressure on z=0.144 plane (myLTSPimpleFoam)
・Ux distribution on the y=0 plane and the z=0.144 plane
Ux on y=0 plane (simpleFoam)
Ux on y=0 plane (myLTSPimpleFoam)
Ux on z=0.144 plane (simpleFoam)
Ux on z=0.144 plane (myLTSPimpleFoam)
1. S.R. Ahmed, G. Ramm, Some Salient Features of the Time-Averaged Ground Vehicle Wake, SAE-Paper 840300, 1984
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