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-   -   Need advices for simulating vortex shedding of moving cylinder (http://www.cfd-online.com/Forums/cfx/92998-need-advices-simulating-vortex-shedding-moving-cylinder.html)

quyetthang October 1, 2011 05:39

Need advices for simulating vortex shedding of moving cylinder
 
Hi there,

I am new in CFD and really need you guys' help. I'm trying to simulate Vortex shedding when water flow around a circular cylinder. Many experiments in scientific papers constrained the cylinder with spring and damper systems to get the movement of the cylinder in cross-flow and in-flow direction when the flow pass it. The problem is with Ansys CFX, I tried to use FSI to simulate it but do not know what constrains in structural analysis is suitable for the requirement above. I also tried Elastic support since it is similar to spring constrain but because I have no ideas how to apply this kind of constrain to the model, it didn't work out. Please give me some advice about this problem. Do I have to constrain some DOF before apply "elastic support" ? thank you in advance for your reply.


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