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Search: Posts Made By: chivaee
Forum: Main CFD Forum March 19, 2012, 11:39
Replies: 11
Views: 2,776
Posted By chivaee
problem partly solved, not sure if it's true ...

Hi again,
regarding the issue with buoyancy driven flow, I tried to decouple temperature and momentum equations completely i.e. after the solution for pressure and velocities converge, I solve the...
Forum: Main CFD Forum March 15, 2012, 10:15
Replies: 11
Views: 2,776
Posted By chivaee
mmm, yeah, meybe, since it scales up as L^3 (L...

mmm, yeah, meybe, since it scales up as L^3 (L being characteristic length scale) ... but isn't it what normally happens? I mean I'm just simulating a small part of the real atmosphere with...
Forum: Main CFD Forum March 15, 2012, 10:13
Replies: 11
Views: 2,776
Posted By chivaee
I might also take a look at the block...

I might also take a look at the block communications (it's a multi-block structured code I'm using) to see if something goes strange ...
Forum: Main CFD Forum March 15, 2012, 10:11
Replies: 11
Views: 2,776
Posted By chivaee
Hmmmm it could be. I've used a simple tanh...

Hmmmm it could be. I've used a simple tanh function to stretch in the wall normal direction and uniform in the other two directions ... the plate is horizontal, in fact its an attempt to model...
Forum: Main CFD Forum March 15, 2012, 10:03
Replies: 11
Views: 2,776
Posted By chivaee
I see your point, but I've tried with URFs of...

I see your point, but I've tried with URFs of down to 0.15 with no success ...
Forum: Main CFD Forum March 14, 2012, 09:07
Replies: 11
Views: 2,776
Posted By chivaee
Arrow Buoyancy driven flow

Hi everybody,

I'm going to solve a simple flow over flat plate and I'm going to have heat equation and buoyancy effects in my flow. My domain size is 1500(height)x6000x6000 [m] and my first grid...
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