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what is the proper aspect ratio?

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Old   April 19, 2018, 15:50
Smile what is the proper aspect ratio?
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Roy
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Hello every one,
I read somewhere that according to ANSYS documentation maximum aspect ratio is around 18-20. If the maximum aspect ratio is lower than these values mentioned, does that make a problem?
I have an O-grid mesh and my geometry is a simple cylinder where I have two phase flow(a bubble column), when I ask for mesh quality in fluent (since I don't know how to check it in CFX, I check it in fluent but i do my runs and solution in CFX.) it gives these values:
Mesh Quality:
Minimum Orthogonal Quality = 8.39805e-01
(Orthogonal Quality ranges from 0 to 1, where values close to 0 correspond to low quality.)
Maximum Ortho Skew = 1.60195e-01
(Ortho Skew ranges from 0 to 1, where values close to 1 correspond to low quality.)
Maximum Aspect Ratio = 9.29158e+00
do you think it is good or I need to do a mesh refinement?
Thanks for your answer in advance.
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