各位前辈，下面这个OpenFOAM报错是什么原因。内容是圆柱绕流的RANS湍流模型。

[zhuhuanyu1986]

Courant Number mean: 0.0689642 max: 3.51936
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::GaussSeidelSmoother::smooth(Foam::word const&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::Field<double> const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, unsigned char, int) at ??:?
#4  Foam::GaussSeidelSmoother::smooth(Foam::Field<double>&, Foam::Field<double> const&, unsigned char, int) const at ??:?
#5  Foam::smoothSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6  ? in "/home/zhu/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/bin/pisoFoam"
#7  ? in "/home/zhu/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/bin/pisoFoam"
#8  ? in "/home/zhu/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/bin/pisoFoam"
#9  ? in "/home/zhu/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/bin/pisoFoam"
#10  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#11  ? in "/home/zhu/OpenFOAM/OpenFOAM-6/platforms/linux64GccDPInt32Opt/bin/pisoFoam"
Floating point exception (core dumped)

[李东岳]

时间步长减小一点试试

[张文青]

楼主问题解决了么？我也遇到类似问题，求解决办法。谢谢！

[hehaohao2013]

the same issue,how do you solve?

[youhaoyu]

@hehaohao2013 This appears to be because the Coulanger number is too large to calculate. You can step the time to a smaller or check the initial conditions

[hehaohao2013]

yes ,i do and it solve.thank you .