[truong_nm]

Dear Foamers!

I am currently trying to simulate a flow around a RAE2822 airfoil. Here are the inlet conditions: Re=500 then Re= 6,500,000 Mach=0.5, AoA=2.92°.

I want to use rhoSimpleFoam solver to do so. First, I wanted to simulate the turbulent flow and then I decided to go back to laminar flow.

My domain is composed of : upstream and downstream, limitbox, intrados, extrados and symmetry.

I am using the following boundary conditions (please find them in attachments).

The simulation starts but fails within three steps. The error is the following:

Foam::GAMGSolver::scalingFactor(Foam::Field<double >&, Foam::Field<double> const&, Foam::Field<double> const&, Foam::Field<double> const&) const in "/home/EUCLIDE/truong_nm/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"
#4 Foam::GAMGSolver::scalingFactor(Foam::Field<double >&, Foam::lduMatrix const&, Foam::Field<double>&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const in "/home/EUCLIDE/truong_nm/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"
#5 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in "/home/EUCLIDE/truong_nm/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"
#6 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/home/EUCLIDE/truong_nm/OpenFOAM/OpenFOAM-1.6/lib/linux64GccDPOpt/libOpenFOAM.so"


Thus, it seems to be due to my schemes parameters. I also attach them.
I searched the forum for similar cases, I tried parameters according what I found but still unsucessfully. Can someone help me to set this case up ?

The mesh comes from Fluent. I converted it using fluent3DMeshToFoam and then scale it to get Re = 500.

Thanks for your help and your answers,
Minh (email: mysttruong@hotmail.com)

0.zip

constant.zip

system.zip

[momahadi30]

Originally Posted by truong_nm

dear foamers!

I am currently trying to simulate a flow around a rae2822 airfoil. Here are the inlet conditions: Re=500 then re= 6,500,000 mach=0.5, aoa=2.92°.

I want to use rhosimplefoam solver to do so. First, i wanted to simulate the turbulent flow and then i decided to go back to laminar flow.

My domain is composed of : Upstream and downstream, limitbox, intrados, extrados and symmetry.

I am using the following boundary conditions (please find them in attachments).

The simulation starts but fails within three steps. The error is the following:

Foam::gamgsolver::scalingfactor(foam::field<double >&, foam::field<double> const&, foam::field<double> const&, foam::field<double> const&) const in "/home/euclide/truong_nm/openfoam/openfoam-1.6/lib/linux64gccdpopt/libopenfoam.so"
#4 foam::gamgsolver::scalingfactor(foam::field<double >&, foam::ldumatrix const&, foam::field<double>&, foam::fieldfield<foam::field, double> const&, foam::uptrlist<foam::lduinterfacefield const> const&, foam::field<double> const&, unsigned char) const in "/home/euclide/truong_nm/openfoam/openfoam-1.6/lib/linux64gccdpopt/libopenfoam.so"
#5 foam::gamgsolver::vcycle(foam:trlist<foam::lduma trix::smoother> const&, foam::field<double>&, foam::field<double> const&, foam::field<double>&, foam::field<double>&, foam::field<double>&, foam:trlist<foam::field<double> >&, foam:trlist<foam::field<double> >&, unsigned char) const in "/home/euclide/truong_nm/openfoam/openfoam-1.6/lib/linux64gccdpopt/libopenfoam.so"
#6 foam::gamgsolver::solve(foam::field<double>&, foam::field<double> const&, unsigned char) const in "/home/euclide/truong_nm/openfoam/openfoam-1.6/lib/linux64gccdpopt/libopenfoam.so"


thus, it seems to be due to my schemes parameters. I also attach them.
I searched the forum for similar cases, i tried parameters according what i found but still unsucessfully. Can someone help me to set this case up ?

The mesh comes from fluent. I converted it using fluent3dmeshtofoam and then scale it to get re = 500.

Thanks for your help and your answers,
minh (email: mysttruong@hotmail.com)

Attachment 2461

Attachment 2462

Attachment 2463

it shouldnot analyzed as a laminar flow case,
i suggest to use sst, or spalart almaras