turbulent inflow conditions

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Randy McDermott

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Apr 9, 2009, 10:54:35 AM4/9/09
to odt-re...@googlegroups.com, FDS and Smokeview Discussions
Alexej,

Kevin McGrattan forwarded your discussion to me about turbulent inflow
conditions for CWE (computational wind engineering).  This is the
second such inquiry that I have seen along these lines (Tony Bova and
I had a discussion about this some time back and so I have also copied
him here).  As Kevin was describing the problem it occurred to me that
the ODT (One-Dimensional Turbulence) model of Kerstein might be very
useful here.  If you are unfamiliar with the approach, the following
recent paper by Rod Schmidt et al. shows how ODT may be coupled with
LES

http://randy.mcdermott.googlepages.com/CMAME_ODTLES.pdf

I have copied the ODT research group as well in case anyone else knows
of examples where ODT has already been used in CWE.

I would be interested to hear about the other methods you have been
pursuing.  I am definitely interested in developing this capability in
FDS.  The most obvious near-term use for NIST is in the WUI
(Wildland-Urban Interface) modeling efforts where we must work with
very sparse, filtered boundary conditions.  But I would imagine that
this is the type of feature that would find many uses once it was
available.

Cheers,
Randy

Kerstein, Alan

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Apr 9, 2009, 11:27:57 AM4/9/09
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Randy,

ODT hasn't been used for this but I think it's a good application due to the need to resolve the wind load in time and space. Sandia has a wind power program in NM and I've tried to keep aware of opportunities. About 2 years ago I was invited to a DOE Office of Science meeting on basic research related to wind power, but as far as I know the meeting never happened. I expect that there is now more interest in the subject and that ODT could make a useful contribution.

Thanks for forwarding this.

Alan
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