Scaling in the s5_energycurve.i file #16379
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Hello, I still couldn't understand the scaling factor and how it works on the residual. In the s5_energycurve.i file, the scaling=1e+04 for variable c. And in the expression of material, kappa_c1e-27, M/1e-27 and f_loc1e-27. Could anyone explain? |
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Replies: 3 comments 4 replies
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1e-27 is for the value of the property, sort of like a unit conversion. It's the same everywhere so it doesn't affect the solution. Probably @dschwen can tell you more about why that value is chosen. The variable scaling affects the residual. You might want to try the newer automatic scaling feature in moose. You can set |
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@dschwen , could you tell me more details about scaling.
2)How the scaling factor influence the residual? 3)In the case of s5_energycurve.i file from tutorial of phase filed, the scaling=1e+04 for variable c. And in the expression of material, kappa_c1e-27, M/1e-27 and f_loc1e-27. Could you explain it? Thank you a lot! |
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I still couldn't understand the scaling factor...Could anyone help? |
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I still couldn't understand the scaling factor...Could anyone help?