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How can one smoothen a piecewisely constant variable?

Posted May 7, 2014, 1:53 a.m. EDT 0 Replies

Pu Zhang
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Dear all,

Generally a dependent variable in COMSOL is a linear combination of 2nd order finite elements. And a variable u_eg defined as 2nd-order derivative of the dependent variable are essentially piecewisely constant. In case one would like to evaluate further the differential properties of u_eg, direct evaluation d(u_eg, x) will be globally zero. Is there a way to smoothen u_eg, in the sense that it has nonzero derivatives?

I think it's possible to export the data and then define an interpolation function from the data. However it's not very convenient.

Thanks!
0 Replies Last Post May 7, 2014, 1:53 a.m. EDT
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Hello Pu Zhang

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