1.在设置边界条件的时候,已经满足条件:
使得库朗数小于1,然而随着计算的进行,经过了多次的迭代后,我发现库朗数也越来越大,最终导致计算终止。但是如果你的end time设置的足够早,就可能避免这种情况。
所以我想问一下,有什么好的设置 \delta t 的方法吗,或者是设置速度模量?
2.最近在算一个算例时出现:
#0 Foam::error::printStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) at ??:?
#4 Foam::PBiCGStab::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#5 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
#6 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
#7 Foam::fvMatrix<double>::solve() at ??:?
#8 Foam::SolverPerformance<double> Foam::solve<double>(Foam::tmp<Foam::fvMatrix<double> > const&) at ??:?
#9 Foam::RASModels::kEpsilon<Foam::PhaseIncompressibleTurbulenceModel<Foam::singlePhaseTransportModel> >::correct() at ??:?
#10 ? at ??:?
#11 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#12 ? at ??:?
请问该如何解决?
3.在计算DPMFoam的算例中的kinematicCloudProperties文件里
sizeDistribution
{
type fixedValue;
fixedValueDistribution
{
value 0.000025;
}
}
此处的value值是面积还是长度?这个范围到底是指的什么?