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error while running the udf

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Old   August 26, 2010, 15:29
Default error while running the udf
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hello everyone....
now the udf is compiling and loading without error...
but while running the simulation at the bigining itself giving error, says
Absolute pressure Limited to 1.0000e+00 in zone 2
Error:> (Greater-than) : invalid argument [2] : wrong type [not a number]
Error object : nan
what it means.. where should i correct..

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