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#1 |
Guest
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Hi,
Does anyone knows any good examples or tutorials or has any idea on how to model a cylinder using CFX ? I am planning to start with a 2d model first before going to 3d model, is that a good idea? or they are totally different? |
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#2 |
Guest
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Can you be more specific? what kind of flow condition you are looking to simulate with a cylinder? e.g. flow inside a cylinder? flow across/along a cylinder??
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#3 |
Guest
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i am looking on flow around a cylinder, first with 2d cylinder (which is basically a cylinder) then with a 3d cylinder, which will include free surface effects. Any nice examples or tips on doing these?
Will really appreciate if you can help. Thanks |
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#4 |
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Ken
one tip - in order to capture unsteady vortex shedding (in 2D) I found it was sometimes necessary to provide a perturbation - e.g. by using a step function in CEL to set up an asymmetric initial condition. Nathan |
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#5 |
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If you are interested in vortex shedding, I wasn't able to get any with a turbulent flow. However, laminar works nicely.
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#6 |
Guest
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I've modelled vortex shedding in turbulent flow using the k-epsilon model, if I remember correctly.
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#7 |
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Do you still have the CFX files? Did you do that in 3d? Will really appreciate it if i can have the files by sending them to my email.... <kky_911@hotmail.com>
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