inflow turbulence using LES ?

panda60 · October 6, 2009, 06:24

Dear everybody,
I want to simulate the wind flows around a building using LES. This is a 3D problem. To Inlet boundary , I want to use inflow turbulence.
Velocity or temperature change with both position and time.
I have huge experiment datas of inflow boundary, change with z , y, and time. In unsteady simulation, in every time step , I want to read these experiment data as the inflow boundary condition, if this can be realized easily in OpenFOAM ? Thank you .

johndeas · October 6, 2009, 06:40

Look for timeVaryingMappedFixedValue in this forum.

panda60 · October 9, 2009, 03:11

Thanks for johndeas, I have already Looked for TimeVaryingMappedFixedValue.

sega · October 13, 2009, 06:49

Quote:

Originally Posted by panda60

Thanks for johndeas, I have already Looked for TimeVaryingMappedFixedValue.

Does that mean you know how to work with TimeVaryingMappedFixedValue or are still searching for a solution?

panda60 · October 15, 2009, 02:32

Quote:

Originally Posted by sega

Does that mean you know how to work with TimeVaryingMappedFixedValue or are still searching for a solution?

I am a newer of OpenFOAM, I'm still searching for a solution,I begin to look TimeVaryingMappedFixedValue, but it seems to be difficult.

sega · October 15, 2009, 03:32

Quote:

Originally Posted by panda60

I am a newer of OpenFOAM, I'm still searching for a solution,I begin to look TimeVaryingMappedFixedValue, but it seems to be difficult.

This may be. Especially as a beginner.
Just tell us what you don't understand and maybe we can help.

October 6, 2009, 06:24	inflow turbulence using LES ?	#1
panda60 Senior Member Jiang Join Date: Oct 2009 Location: Japan Posts: 186 Rep Power: 17	Dear everybody, I want to simulate the wind flows around a building using LES. This is a 3D problem. To Inlet boundary , I want to use inflow turbulence. Velocity or temperature change with both position and time. I have huge experiment datas of inflow boundary, change with z , y, and time. In unsteady simulation, in every time step , I want to read these experiment data as the inflow boundary condition, if this can be realized easily in OpenFOAM ? Thank you .

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October 6, 2009, 06:40		#2
johndeas Senior Member John Deas Join Date: Mar 2009 Posts: 160 Rep Power: 17	Look for timeVaryingMappedFixedValue in this forum.

October 9, 2009, 03:11		#3
panda60 Senior Member Jiang Join Date: Oct 2009 Location: Japan Posts: 186 Rep Power: 17	Thanks for johndeas, I have already Looked for TimeVaryingMappedFixedValue.