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What's the difference between residual and cauchy in convergence criteria |
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September 7, 2015, 08:43
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What's the difference between residual and cauchy in convergence criteria
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#1 |
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New Member
Jason Shih
Join Date: Jan 2015
Location: Xi'an China
Posts: 26
Rep Power: 11  |
Hi,
I'm using SU2_v3.2.7 for shape optimization, but I'm a little confuse about the option RESIDUAL and CAUCHY in convergence criteria. Can anybody explain the difference between these options for me? Thanks in advance! Jason Shih |
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September 15, 2015, 16:06
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#2 |
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New Member
Andrw Wendorff
Join Date: Apr 2014
Posts: 28
Rep Power: 12 |
The cauchy convergence looks at one of the coefficients and when the coefficient is steady to a specified decimal place for a certain number of elements (also specified) then the run stops. The residual looks at the density residual and requires that residual to decrease a specified number orders of magnitude.
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September 24, 2015, 03:40
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#3 |
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New Member
Jason Shih
Join Date: Jan 2015
Location: Xi'an China
Posts: 26
Rep Power: 11 |
Hi,Andrw
Thanks for your reply,that helps. ` Jason Shih |
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March 12, 2018, 17:58
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#4 |
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New Member
User2018
Join Date: Jan 2018
Posts: 1
Rep Power: 0 |
hello,
what does it mean convergence criteria for the residuals? |
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| Tags |
| cauchy, residual, su2 |
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