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dkydky

新虫 (初入文坛)

[求助] 关于管式反应器的数值积分,是中仿科技上的一个例题,但却出现了一个错误 已有1人参与

大神指教
这是关于管式反应器的数值积分,是中仿科技上的一个例题,但却出现了一个错误,导致建模无法进行,细节如下:

Exception:
        com.femlab.jni.FlNativeException: Undefined value found Solvermodel
Messages:
        Undefined value found Solvermodel

Stack trace:
        at solvermodel.cpp, row 1808, (Undefined value found in the stiffness matrix.
There are 2 equations giving NaN/Inf in the matrix rows for the variable u1
at coordinates: (0), (1), ...
There are 2 equations giving NaN/Inf in the matrix rows for the variable u2
at coordinates: (0), (1), ...
There are 2 equations giving NaN/Inf in the matrix rows for the variable u3
at coordinates: (0), (1), ...
and similarly for the degrees of freedom, NaN/Inf in the matrix columns
)
        at com.femlab.solver.FlSolver.femTime(Native Method)
        at com.femlab.solver.FemTime.run(Unknown Source)
        at com.femlab.server.FlRunner.run(Unknown Source)
        at com.femlab.util.i.run(Unknown Source)
        at com.femlab.util.ae.run(Unknown Source)


如果能告诉我这个问题,定当重谢
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dkydky

新虫 (初入文坛)

这个是怎么一个问题啊,我也不太清楚啊
2楼2015-01-31 21:53:37
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simulation

金虫 (小有名气)

【答案】应助回帖

★ ★ ★ ★ ★
dkydky: 金币+5, ★有帮助 2015-02-16 14:32:55
检查模型中的参数设定,例如材料属性、函数等,这个错误通常表示在模型中使用了未定义的变量。
3楼2015-02-04 16:10:25
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