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July 28, 2014, 08:01 |
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#21 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
Dear Araujo,
Do i need to input constraints for my body in dynamicMeshDict file?, because the same i had already inputed in pointDisplacement file. Pls suggest. Thanks and Regards, Amit Dhage |
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July 28, 2014, 14:30 |
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#22 |
New Member
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Which openfoam version are you using? This varies from version to version.
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July 28, 2014, 15:01 |
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#23 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
I am using version 2.2.2
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July 28, 2014, 15:50 |
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#24 |
New Member
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July 29, 2014, 00:50 |
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#25 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
Dear Araujo,
I have checked the constraints many a times and really not finding any clue, can you pls check the same file i am attaching herewith and suggest something. Regards, Amit Dhage |
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July 29, 2014, 05:35 |
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#26 |
New Member
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Center of mass on (0,0,0)? Is that correct? It is important to notice that the center of mass of the cylinder is referred relative to the domain position (your mesh).
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July 29, 2014, 05:50 |
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#27 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
Dear Araujo,
The centre of mass is specified w.r.t global coordinate system, and the domain is also specified w.r.t global coordinate system. Is this correct? regards, Amit Dhage |
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August 21, 2014, 07:48 |
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#28 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Amit,
my pointDisplacement file is attached. I hope that would be help. All the best. |
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August 21, 2014, 07:50 |
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#29 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Sorry there is attached problem. Here it is
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.3.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class pointVectorField; location "0.01"; object pointDisplacement; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 0 0 0 0 0]; internalField uniform (0 0 0); boundaryField { cylinder { type calculated; value uniform (0 0 0); } top { type empty; //symmetry; } bottom { type empty; //symmetry; } walls { type slip; //symmetry; } ".*" { type fixedValue; value uniform (0 0 0); } } // ************************************************** *********************** // |
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August 21, 2014, 12:58 |
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#30 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
Dear Maimouna,
Thanks for your reply! Are you able to produce results with point displacement file you sent to me?, since you have not imposed any constraints on the body, if so then i will try with the same. Thanks and regards, Amit Dhage |
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August 22, 2014, 06:21 |
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#31 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Amit,
constraints and resistance are imposed in dynamicMeshDict file. I'm still working on that to get the result. Regards Maimouna |
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August 22, 2014, 06:33 |
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#32 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
Dear Maimouna,
I am not sure if that will work, because if you go through the tutorial of Wing motion...constraints and restraints are set in PointDisplacement file and not in dynamicMeshDict file. Thanks and regards, Amit Dhage |
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August 22, 2014, 06:47 |
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#33 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Amit,
you are right if you are using OF-2.2.2, but I'm using OF-2.3.0. So you will find the difference. All the best. Maimouna |
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August 22, 2014, 07:10 |
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#34 |
New Member
Amit Dhage
Join Date: Sep 2013
Location: India
Posts: 15
Rep Power: 13 |
oh is it?, then its fine...let me know if it works successfully.
Thanks and regards, Amit Dhage |
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August 27, 2014, 07:07 |
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#35 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Leonardo,
what are your stiffness and damping values that you used in your case? What about displacement? Where exactly did you set that? Could you please provide us by that information to make more clarification. Thanks and regards. Maimouna |
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September 16, 2014, 03:24 |
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#36 | |
New Member
Alireza Heidari
Join Date: Apr 2014
Posts: 5
Rep Power: 12 |
Quote:
i have run with your pointDisplacement file and the result shown the cylinder is stationary in different Re number (Re=100,150,200) did you have same problem? and what did you do? Thanks & regards Alireza Heidari |
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November 23, 2017, 13:43 |
method
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#37 | |
New Member
Naeem Ur Rahman
Join Date: Nov 2017
Posts: 6
Rep Power: 8 |
Quote:
Thanks, please help me |
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Tags |
6 dof, openfoam 2.1.0, pointdisplacement, tutorial, vortex induced vibrations |
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