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What 's different between the linearUpwind and LinearUpwindV ? |
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November 14, 2015, 16:29 |
What 's different between the linearUpwind and LinearUpwindV ?
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#1 |
New Member
Jindo
Join Date: Mar 2011
Location: Germany
Posts: 25
Rep Power: 15 |
Hi everyone,
I have confused between "linearUpwind" and "linearUpwindV". I dont know that as using the "linearUpwindV", it is better than use "linearUpwind" ? Could help me the formula of "linearUpwindV" method ? The word "V" in linearUpwindV ", which is the vector ? Thanks Phuc. |
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November 15, 2015, 06:59 |
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#2 |
Senior Member
Join Date: Jun 2012
Location: Germany, Bochum
Posts: 230
Rep Power: 15 |
I don't know the exact formulation of the different schemes, but some of your questions are answered in the OF UserGuide:
http://cfd.direct/openfoam/user-guide/fvschemes/ |
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September 30, 2018, 11:40 |
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#3 | |
Member
Federico Agustín Caccia
Join Date: Jun 2015
Location: Buenos Aires, Argentina
Posts: 55
Rep Power: 10 |
Quote:
From the user guide: ‘V’-schemes are specialised versions of schemes designed for vector fields. They differ from conventional schemes by calculating a single limiter which is applied to all components of the vectors, rather than calculating separate limiters for each component of the vector. The ‘V’-schemes’ single limiter is calculated based on the direction of most rapidly changing gradient, resulting in the strongest limiter being calculated which is most stable but arguably less accurate. |
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