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#1 |
New Member
nawa
Join Date: Aug 2023
Posts: 5
Rep Power: 3 ![]() |
I have this weird thing going on what might be the reasons for it??
Case is simple setFields initialized slurry in comes down and mixes. Solver is multiphaseInterFoam and boundaries are given below Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 4.0 | | \\ / A nd | Website: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; arch "LSB;label=32;scalar=64"; class volVectorField; location "0"; object U; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { dome { type noSlip; } inlet { type pressureInletOutletVelocity; value uniform (0 0 0); } inlet_pipe { type noSlip; } outlet { type pressureInletOutletVelocity; value uniform (0 0 0); } walls { type noSlip; } gas_outlet { type noSlip; } default_faces { type empty; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 4.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object p_rgh; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [1 -1 -2 0 0 0 0]; internalField uniform 0; boundaryField { inlet { type fixedValue; value uniform 101325; // atmospheric pressure at inlet } outlet { type fixedValue; value uniform 101325; // atmospheric pressure at outlet } gas_outlet { type zeroGradient; } walls { type zeroGradient; } inlet_pipe { type zeroGradient; } dome { type zeroGradient; } defaultFaces { type empty; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 4.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object alpha.slurry; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 0 0 0 0 0 0];//kg m s K mol A cd internalField uniform 0; boundaryField { inlet { type zeroGradient; } outlet { type zeroGradient; } walls { type zeroGradient; } inlet_pipe { type zeroGradient; } dome { type zeroGradient; } gas_outlet { type zeroGradient; } defaultFaces { type empty; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 4.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object alpha.gas; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 0 0 0 0 0 0];//kg m s K mol A cd internalField uniform 0; boundaryField { inlet { type zeroGradient; } outlet { type zeroGradient; } walls { type zeroGradient; } inlet_pipe { type zeroGradient; } dome { type zeroGradient; } gas_outlet { type zeroGradient; } defaultFaces { type empty; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 4.0 | | \\ / A nd | Website: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; arch "LSB;label=32;scalar=64"; class volScalarField; location "0"; object alpha.air; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 0 0 0 0 0 0]; internalField uniform 1; boundaryField { dome { type zeroGradient; } inlet { type zeroGradient; } inlet_pipe { type zeroGradient; } outlet { type zeroGradient; } walls { type zeroGradient; } gas_outlet { type zeroGradient; } defaultFaces { type empty; } } // ************************************************************************* // |
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#2 |
Senior Member
Yann
Join Date: Apr 2012
Location: France
Posts: 1,169
Rep Power: 27 ![]() |
Hello,
Could you elaborate on what you are simulating? I see you have inlet/outlet/pipe_inlet/gas_outlet but it's hard to understand where it is on your geometry and what flow you want to generate. Yann |
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#3 |
New Member
nawa
Join Date: Aug 2023
Posts: 5
Rep Power: 3 ![]() |
Thank you Yann for the reply!
So basically the case is about the natural process of how slurry situated at let's say xyz height (shown in figure below ) flows through the pipe and mixes with the slurry at abc height (see in figure ) . I have updated the image with the more details where all of the red texts were patches. Also, let me remind you that the patch gas_outlet is not an outlet boundary condition for this case it's just a wall (sorry for the misinformation that one is there because I actually named it for the other simulation for which I need that patch and the mesh file I will be using is the same that I used here (I hope it clears out . please tell me if it didn't.)) boundaries are inlet - atmosphere outlet -atmosphere gas_outlet - walls inlet_pipe - walls dome -walls walls -walls Also the simulation should stop when the all of the slurries at height xyz m completely comes down and settles. I hope it clarifies. Here is the link to the case file https://drive.google.com/drive/folde...cF?usp=sharing |
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