CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Axisymmetric jet

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 24, 2019, 16:03
Smile Axisymmetric jet
  #1
New Member
 
Avishai
Join Date: Dec 2019
Posts: 1
Rep Power: 0
AviSh is on a distinguished road
hi,
i'm new with openFOAM (OF) and a little bit confused by all the commands that changed with OF versions. Please advice me how to learn OF from up-to date materials.
In addition i try to run an axisymmetric jet simulation and i cant seem to find enough material. Nevertheless, with code i found in github i managed to construct a case that succeed to run however only for one time step.
Attached code:
0/p:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 2 -2 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    inlet
    {
        type            zeroGradient;
    }
    atmosphere
    {
        type            totalPressure;
        p0              uniform 0;
    }

  #includeEtc "caseDicts/setConstraintTypes"
}
0/U:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volVectorField;
    object      U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

Uinlet          (10 0 0);

dimensions      [0 1 -1 0 0 0 0];

internalField   uniform (0 0 0);

boundaryField
{
    inlet
    {
        type            fixedValue;
        value           uniform $Uinlet;
    }
    atmosphere
    {
        type            pressureInletOutletVelocity;
        value           uniform (0 0 0);
    }

    #includeEtc "caseDicts/setConstraintTypes"
}

// ************************************************************************* //
constant/blockMeshDict:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

backgroundMesh
{
    length  25;
    rA     0.5; // radius of inlet patch
    rB       4; // outer radius
    lengthCells 250;
    rAcells 10;
    rBcells 50;
}

convertToMeters 1;

vertices
(
    (                      0                   0 -1)
    ($:backgroundMesh.length                   0 -1)
    (                      0 $:backgroundMesh.rA -1)
    ($:backgroundMesh.length $:backgroundMesh.rA -1)
    (                      0 $:backgroundMesh.rB -1)
    ($:backgroundMesh.length $:backgroundMesh.rB -1)

    (                      0                   0  0)
    ($:backgroundMesh.length                   0  0)
    (                      0 $:backgroundMesh.rA  0)
    ($:backgroundMesh.length $:backgroundMesh.rA  0)
    (                      0 $:backgroundMesh.rB  0)
    ($:backgroundMesh.length $:backgroundMesh.rB  0)
);

blocks
(
    hex (0 1 3 2 6 7 9 8)
    ($:backgroundMesh.lengthCells $:backgroundMesh.rAcells 1)
    simpleGrading (1 1 1)

    hex (2 3 5 4 8 9 11 10)
    ($:backgroundMesh.lengthCells $:backgroundMesh.rBcells 1)
    simpleGrading (1 1 1)
);

edges
(
);

boundary
(
    inlet
    {
        type patch;
        faces
        (
            (0 6 8 2)
        );
    }

    front
    {
        type symmetry;
        faces
        (
            (6 7  9 8)
            (8 9 11 10)
        );
    }

    back
    {
        type symmetry;
        faces
        (
            (0 1 3 2)
            (2 3 5 4)
        );
    }

    atmosphere
    {
        type patch;
        faces
        (
            (4 5 11 10)
            (5 3 9 11)
            (3 1 7 9)
        );
    }
);

mergePatchPairs
(
);

// ************************************************************************* //
system/extrudeMeshDict:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      extrudeProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

constructFrom patch;
sourceCase "$FOAM_CASE";

sourcePatches (front);
exposedPatchName back;

extrudeModel        wedge;

sectorCoeffs
{
    axisPt          (0 0 0);
    axis            (1 0 0);
    angle           5;
}

flipNormals false;
mergeFaces false;

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
system/controlDict:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

application     icoFoam;

startFrom       startTime;

startTime       0;

stopAt          endTime;

endTime         1000;

deltaT          0.1;

writeControl    timeStep;

writeInterval   1;

purgeWrite      0;

writeFormat     ascii;

writePrecision  12;

writeCompression off;

timeFormat      general;

timePrecision   6;

runTimeModifiable true;

// ************************************************************************* //
Bash terminal pic also attached.

I appreciate any remark.
thanks!
Attached Images
File Type: jpg problem.jpg (78.5 KB, 13 views)
AviSh is offline   Reply With Quote

Reply

Tags
axisymmetric, jet, openfoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to plot jet half width of axisymmetric jet pawansharma OpenFOAM Post-Processing 0 May 7, 2019 04:44
Pulsatile axisymmetric jet in Ansys Fluent (transient) JiDo FLUENT 0 March 23, 2019 03:29
Modeling of TKE in axisymmetric jet jvaquero8 FLUENT 2 November 30, 2017 12:01
Axisymmetric water jet 2D cho99 OpenFOAM Running, Solving & CFD 1 August 30, 2017 06:39
Simulation of Axisymmetric jet flow in openfoam gunvirs OpenFOAM 0 July 4, 2016 05:08


All times are GMT -4. The time now is 06:14.