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Forum: CFX

September 14, 2012, 14:33

Replies: 15

Better convergence with Upwind than High-Resolution advection scheme

Views: 12,669

Posted By Possa

Yes, you are correct, but the 1st order scheme...

Yes, you are correct, but the 1st order scheme (what CFX calls Upwind) is more robust than the High Resolution because of the order.

What I'm trying to say is that for some problems higher order...

Forum: CFX

September 14, 2012, 13:47

Replies: 15

Better convergence with Upwind than High-Resolution advection scheme

Views: 12,669

Posted By Possa

Hi, Then I stand for my previous post. Your...

Hi,

Then I stand for my previous post. Your problem is a upstream problem. The Upwind scheme is physically consistent. Using HR scheme doesn't necessarily mean it will provide better results.

Forum: CFX

September 14, 2012, 12:30

Replies: 15

Better convergence with Upwind than High-Resolution advection scheme

Views: 12,669

Posted By Possa

A little more about the advection schemes can be...

A little more about the advection schemes can be found here http://www.cfd-online.com/Wiki/Approximation_Schemes_for_convective_term

Regards,
Possa

Forum: CFX

September 14, 2012, 12:26

Replies: 15

Better convergence with Upwind than High-Resolution advection scheme

Views: 12,669

Posted By Possa

Hello siw, If I understood correctly you are...

Hello siw,

If I understood correctly you are solving a fluid flow inside a porous medium, is that so?

If that's the case, the Upwind scheme is suppose to make the convergence better. This...

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