Dear
I am trying to simulate VIV of CYLINDER IN CFX rigid body solver. I have made a sub domain around cylinder which follows the rigid body motion. Which type of mesh motion should I set on both sides of fluid fluid INTERFACE between the sub domain and outer fluid domain. If I use rigid body motion on both sides then mismatch between the mesh occurs on both sides of INTERFACE. SHOULD I USE conservative INTERFACE FLUX on both sides. What are effects of both. Moreover when I use conservative INTERFACE FLUX on both sides I get negative volume mesh but when I use rigid body solution on both sides I don't get negative volumes . The stiffness is set to 1[m5 /s]*VOLUME OF FINITE VOLUMES. Please guide.
I have made a sub domain around cylinder which follows the rigid body motion? ...why? ..... you should try to folow the fluid speed. can you give me more details or a cfx project to see details?
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