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Forum: OpenFOAM Running, Solving & CFD August 31, 2009, 09:06
Replies: 12
Views: 5,815
Posted By prapanj
Thanks Mike :) Btw, I was trying to use...

Thanks Mike :)

Btw, I was trying to use turbulentInlet BC. I assume the fluctuation scale is the turbulent intensity in each direction. The simulation seems fine, except that I can't make any...
Forum: OpenFOAM Running, Solving & CFD August 30, 2009, 12:03
Replies: 12
Views: 5,815
Posted By prapanj
Hi Daniel, I hope I can go upto 2 million...

Hi Daniel,

I hope I can go upto 2 million cells with my current computational ability. Still, I know my deltaT could be as low as 0.0001 for this kind of a problem for the Co to be within bounds....
Forum: OpenFOAM Running, Solving & CFD August 30, 2009, 12:01
Replies: 12
Views: 5,815
Posted By prapanj
Hi Bjj, I see using direct Mapped boundary...

Hi Bjj,

I see using direct Mapped boundary should be an option. But my concern is, what primer domain do I use to get the turbulence? I hear a lot about the channel flow that generate turbulence....
Forum: OpenFOAM Running, Solving & CFD August 27, 2009, 07:35
Replies: 12
Views: 5,815
Posted By prapanj
Daniel, I just checked the turbulentInlet...

Daniel,

I just checked the turbulentInlet and it looks like a good starting point. Do you think I could achieve better solutions with channel mapping?

What do they mean by a reference field and...
Forum: OpenFOAM Running, Solving & CFD August 27, 2009, 07:23
Replies: 12
Views: 5,815
Posted By prapanj
Answering the left out questions, I am using...

Answering the left out questions,

I am using dynOneEqnEddy model.

Yes upstream turbulence is crucial for my case as I am dealing with coefficient of drag values. And I see these values are...
Forum: OpenFOAM Running, Solving & CFD August 27, 2009, 07:22
Replies: 12
Views: 5,815
Posted By prapanj
Hi lakeat, In fact I was just reading...

Hi lakeat,

In fact I was just reading another forum entry from you :)

I am not aware of a turbulent inlet entry. Is it just specification of the turbulent kinetic energy ? Because I think I...
Forum: OpenFOAM Running, Solving & CFD August 27, 2009, 06:10
Replies: 12
Views: 5,815
Posted By prapanj
Large Eddy Simulation inlet

Hi,

I am trying to simulate a wind tunnel case of flow over cylinder at a range of high Reynolds numbers. I was trying to simulate a certain length of the cylinder and cap the domain by symmetry...
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