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PimpleDyMFoam --Simulate turbulence caused by moving object |
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January 13, 2018, 06:10 |
PimpleDyMFoam --Simulate turbulence caused by moving object
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#1 |
Member
Join Date: Jan 2018
Location: Malaysia
Posts: 58
Rep Power: 8 |
Hi, I would like to simulate the turbulence and airflow caused by the movement of elevator car in the shaft, including the airflow surrounding the car and within the whole shaft.
I set my initial condition as: U internalField uniform (0 0 0); boundaryField { carTop { type movingWallVelocity; value $internalField; } carSide { type movingWallVelocity; value $internalField; } carBase { type movingWallVelocity; value $internalField; } shaftTop { type zeroGradient; } shaftSide { type fixedValue; value uniform (0 0 0); } shaftBase { type fixedValue; value uniform (0 0 0); } P internalField uniform 0; boundaryField { carTop { type zeroGradient; } carSide { type zeroGradient; } carBase { type zeroGradient; } shaftTop { type totalPressure; p0 uniform 0; } shaftSide { type zeroGradient; } shaftBase { type zeroGradient; } k internalField uniform 0.375; boundaryField { carTop { type kqRWallFunction; value uniform 0.375; } carSide { type kqRWallFunction; value uniform 0.375; } carBase { type kqRWallFunction; value uniform 0.375; } shaftTop { type zeroGradient; } shaftSide { type kqRWallFunction; value uniform 0.375; } shaftBase { type kqRWallFunction; value uniform 0.375; } epsilon internalField uniform 14.855; boundaryField { carTop { type epsilonWallFunction; value uniform 14.855; } carSide { type epsilonWallFunction; value uniform 14.855; } carBase { type epsilonWallFunction; value uniform 14.855; } shaftTop { type zeroGradient; } shaftSide { type epsilonWallFunction; value uniform 14.855; } shaftBase { type epsilonWallFunction; value uniform 14.855; } nut internalField uniform 0; boundaryField { carTop { type nutkWallFunction; value uniform 0; } carSide { type nutkWallFunction; value uniform 0; } carBase { type nutkWallFunction; value uniform 0; } shaftTop { type zeroGradient; } shaftSide { type nutkWallFunction; value uniform 0; } shaftBase { type nutkWallFunction; value uniform 0; } I expect to see some velocity or pressure contour, but the U and P is uniform along the shaft and throughout car surface. I had attached the picture for results. U.jpg P.jpg k.jpg epsilon.jpg nut.jpg Sorry for my dummy question. I would be very grateful if there's someone to suggest any correction to be done. Thanks |
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January 13, 2018, 06:17 |
Velocity contour aimed to get
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#2 |
Member
Join Date: Jan 2018
Location: Malaysia
Posts: 58
Rep Power: 8 |
simplecar.PNG
movingcone.jpg I'm sorry. But my post had limited 5 attachments. So I posted another to attach the picture i aim to get. Thanks Last edited by jiahui_93; January 14, 2018 at 11:42. |
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