komega模型求解传热算例的报错
-
各位老师好,我是在DNS求解器的基础上引入湍流kOMega模型,并加入温度方程引入湍流热扩散系数(参照OF2.3中的传热求解器buoyanBoussinesqPimpleFoam 中的热扩散系数代码),求解器编译通过。
参考代码:
alphat = turbulence->nut()/Prt; alphat.correctBoundaryConditions(); volScalarField alphaEff("alphaEff", turbulence->nu()/Pr + alphat);
报错如下:
Reading field T Reading/calculating face flux field phi Reading field phi_0 Creating turbulence model Selecting incompressible transport model Newtonian Selecting turbulence model type RASModel Selecting RAS turbulence model kOmegaMHD//这里以上都能正确读取各个声明的场和模型,接下去本应该读取热扩散系数的alpha场的,但报以下一些错误。 bounding omega, min: 0 max: 0 average: 0 [39] [1] #0 Foam::error::printStack(Foam::Ostream&)[2] [11] [44] #[25] #0 Foam::error::printStack(Foam::Ostream&)#0 Foam::error::printStack(Foam::Ostream&)[26] #0 Foam::error::printStack(Foam::Ostream&)[40] #0 [16] #1 Foam::sigFpe::sigHandler(int) at ??:?//这个错误是除零错误 [37] #1 Foam::sigFpe::sigHandler(int)[20] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [2] #1 Foam::sigFpe::sigHandler(int) at ??:? [47] #4 void Foam::divide<Foam::fvPatchField, Foam::volMesh>(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) in "/lib/x86_64-linux-gnu/libc.so.6" [23] #3 Foam::divide(Foam::Field<double>&, Foam::UList<double> const&, Foam::UList<double> const&) at ??:? [kdd:28991] *** Process received signal *** [kdd:28991] Signal: Floating point exception (8)//浮点数例外错误 [kdd:28991] Signal code: (-6) [kdd:28991] Failing at address: 0x3e80000713f -------------------------------------------------------------------------- mpirun noticed that process rank 30 with PID 31201 on node kdd exited on signal 8 (Floating point exception). -------------------------------------------------------------------------- 2 total processes killed (some possibly by mpirun during cleanup)
自带的模型中的Omega方程中的热扩散系数alpha如何理解?我本来将代码中的综合热扩散系数alphaEff去掉,并把alpht改成alpha来表示湍流热扩散系数来与模型保持一致,但依然报如上错误。
OF自带的模型中的Omega方程
tmp<fvScalarMatrix> omegaEqn ( fvm::ddt(omega_) + fvm::div(phi_, omega_) - fvm::laplacian(DomegaEff(), omega_) == alpha_*G*omega_/k_ - fvm::Sp(beta_*omega_, omega_) );
-
Selecting incompressible transport model Newtonian Selecting turbulence model type RASModel Selecting RAS turbulence model kOmegaMHD//这里以上都能正确读取各个声明的场和模型,接下去本应该读取热扩散系数的alpha场的,但报以下一些错误。 bounding omega, min: 0 max: 0 average: 0 [39] [1] #0 Foam::error::printStack(Foam::Ostream&)[2] [11] [44] #[25] #0 Foam::error::printStack(Foam::Ostream&)#0 Foam::error::printStack(Foam::Ostream&)[26] #0 Foam::error::printStack(Foam::Ostream&)[40] #0
不太好判断呀,一上来就报错了,不太好判断