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Error "piecewise function is out of range"

Posted 07.10.2020, 20:12 GMT-4 Heat Transfer & Phase Change, Heat Transfer Version 5.4 0 Replies

Alok Ray
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Hello

I am trying to model the melting of a phase change material. I've defined the dynamic viscosity as a piecewise, continuous, second derivative function centered about melting point. When T<Tmelt, mu=10^8 and when T>Tmelt,mu=0.008 pa.s. However, during run comsol throws following error. Could anyone please help to resolve the error ?

  • Feature: Time-Dependent Solver 1 (sol1/t1) Piecewise function is out of range.
    • Function: comp1.mat2.def.mu Failed to evaluate variable.
    • Variable: comp1.mat2.def.mu
    • Defined as: (comp1.mat2.def.mu(comp1.T2/unit_K_cf)unit_Pa_cf)unit_s_cf

Thanks Alok Ray

0 Replies Last Post 07.10.2020, 20:12 GMT-4
COMSOL Moderator

Hello Alok Ray

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