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October 6, 2013, 13:50 |
divScheme for recirculating flows
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#1 |
Senior Member
Bobby
Join Date: Oct 2012
Location: Michigan
Posts: 454
Rep Power: 15 |
Dear Buddies
In my case, flow has recirculation zones (cause its a bluff-body stabilized flow). which scheme do you prefer for the following divergence operations: div(phi,U) div(phiU,p) My flow field must have both positive and negative values together in the 3-D domain. My suggestion is Gauss upwind. Regards Bobi |
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October 7, 2013, 12:05 |
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#2 |
Senior Member
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Dear Bobi,
Upwind will be way too diffusive, might even remove the recirculation zone at all. I would suggest to use one of the TVD schemes like Gamma. Please have a look in the user guide. limitedLinear or linearUpwind would also be 'standard' candidates. Best would be to try and see what works best, maybe for a smaller but similar problem in order to save time. Regards, Tom |
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October 8, 2013, 01:05 |
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#3 |
Senior Member
Bobby
Join Date: Oct 2012
Location: Michigan
Posts: 454
Rep Power: 15 |
Hi Tom
Thanks for your reply; Actually I tested upwind and limitedlinear and as you have mentioned The result was much better stability for limitedlinear scheme. Regards Bobi |
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