# How can we use the point patch fields given in OpenFOAM141srcfvMotionSolverpointPatchFieldsderive d

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 August 17, 2007, 14:19 Hi community.. Can some bod #1 Senior Member   Join Date: Mar 2009 Posts: 248 Rep Power: 17 Hi community.. Can some body please explain how one can use the point patch fields given in : /home/singh/OpenFOAM/OpenFOAM-1.4.1/src/fvMotionSolver/pointPatchFields/derived There are following options available: --> angularOscillatingDisplacement --> angularOscillatingVelocity --> oscillatingDisplacement --> oscillatingVelocity As far as my understanding goes they have to do something with the meshMotion :-). The next doubt i have is this: the velocityLaplacian solver requires pointMotionU and cellMotionU. can one use the above pointFields to specify the pointMotionU and cellMotionU like this: FoamFile { version 2.0; format ascii; root "interFoam"; case "meshMotion"; instance "0"; local ""; class volVectorField; object cellMotionU; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { cube { type oscillatingDisplacement; amplitude (0.5 0 0); omega 0.25; value uniform (0 0 0); } } FoamFile { version 2.0; format ascii; root "interFoam"; case "meshMotion"; instance "0"; local ""; class pointVectorField; object pointMotionU; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { cube { type oscillatingDisplacement; amplitude (0.5 0 0); omega 0.25; value uniform (0 0 0); } } If this is completely wrong then please advice how one could specify the pointMotionU and cellMotionU , which is required to use the velocityLaplacian solver Thanks alot Jaswinder

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