what about dns?

sekassir · March 22, 2009, 13:45

Hi, everybody!
I'm neophyte - new - beginner - as you want - with OF.
I need to consider an incompessible flow within a spiral corrugated pipe (OD=20 mm, ID=18 mm) at RE <= 20000 and make DNS calc. As to memory and time - it's all o'k. So, my questions are:
did someone make a DNS calculation with OF for 'not-box' geometry? I think that 'dnsFoam' is a spectral method, and, as consequence, will require periodic BC - that is not my case. Is it right?
What about LES + fine grid (down to Kolmogorov scale)? And more: what about simplest laminar solver + the same grid?

Thanks in advance,

zhuk · March 22, 2009, 17:13

I think...

March 22, 2009, 13:45	what about dns?	#1
sekassir New Member sergey Join Date: Mar 2009 Posts: 2 Rep Power: 0	Hi, everybody! I'm neophyte - new - beginner - as you want - with OF. I need to consider an incompessible flow within a spiral corrugated pipe (OD=20 mm, ID=18 mm) at RE <= 20000 and make DNS calc. As to memory and time - it's all o'k. So, my questions are: did someone make a DNS calculation with OF for 'not-box' geometry? I think that 'dnsFoam' is a spectral method, and, as consequence, will require periodic BC - that is not my case. Is it right? What about LES + fine grid (down to Kolmogorov scale)? And more: what about simplest laminar solver + the same grid? Thanks in advance, Last edited by sekassir; March 23, 2009 at 16:44.

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March 22, 2009, 17:13		#2
zhuk New Member Yriy Join Date: Mar 2009 Posts: 1 Rep Power: 0	I think...