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Old   April 30, 2013, 20:02
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Natali
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Hello guys,
I am wondering why I cannot reach to a stable and unchanged results when I am doing mesh refinement in many steps. Now, I refined the mesh almost 7 times smaller but th changes are huge compared with the last step.
Really thanks,
Natali
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Old   April 30, 2013, 20:42
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Do you use the first-order discretization? If so, please use second order discretization.
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Old   April 30, 2013, 20:46
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Quote:
Originally Posted by blackmask View Post
Do you use the first-order discretization? If so, please use second order discretization.
I am using 2nd order.
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Old   May 1, 2013, 02:30
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How small is your mesh? You could be picking up transients in the flow. Maybe switch to the transient solver with a small timestep?
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Old   May 1, 2013, 03:50
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Quote:
Originally Posted by Natali_Beginner View Post
Hello guys,
I am wondering why I cannot reach to a stable and unchanged results when I am doing mesh refinement in many steps. Now, I refined the mesh almost 7 times smaller but th changes are huge compared with the last step.
Really thanks,
Natali
What was the size of initial mesh and refined mesh?

What type of flow you are analysing?
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