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Integrating sixDoFRigidBodyMotion and rotatingMotion in OpenFOAM |
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December 10, 2023, 22:32 |
Integrating sixDoFRigidBodyMotion and rotatingMotion in OpenFOAM
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Perseus
Join Date: Dec 2023
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Hello everyone,
I'm a newcomer to OpenFOAM, and I'm planning to simulate the 2D Vortex-Induced Vibration (VIV) phenomenon of an ellipse using the overPimpleDyMFoam solver in OpenFOAM V2306. In my setup, I want to allow the ellipse to freely oscillate in the vertical inflow direction and simultaneously apply a constant rotational angular velocity to the ellipse. I plan to use sixDoFRigidBodyMotion to simulate the free oscillation and rotatingMotion under solidBody to simulate the constant rotational angular velocity. However, I'm struggling to integrate these two motions seamlessly. Below is my dynamicMeshDict file settings: Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v2306 | | \\ / A nd | Website: www.openfoam.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object dynamicMeshDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dynamicFvMesh dynamicOversetFvMesh; solver multiSolidBodyMotionSolver; solvers { viv { motionSolver sixDoFRigidBodyMotion; patches (cylinder); innerDistance 100; outerDistance 101; report on; mass 2; centreOfMass (0.0 0.0 0.0); momentOfInertia (1 1 1); g (0 0 0); rho rhoInf; rhoInf 1; solver { type Newmark; } constraints { yLine { sixDoFRigidBodyMotionConstraint line; direction ( 0 1 0); } rotation { // sixDoFRigidBodyMotionConstraint orientation; sixDoFRigidBodyMotionConstraint axis; // centreOfRotation (0 0 0); axis (0 0 1); } } } overset_internal { motionSolver solidBody; solidBodyMotionFunction rotatingMotion; rotatingMotionCoeffs { origin (0. 0. 0.); axis (0 0 1); omega 1.570; } } } Thank you! |
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rotate body, sixdofmotionsolver, solidbodymotion, viv |
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