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how to calculate cell distance to know courant number?

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Old   June 29, 2023, 05:29
Exclamation how to calculate cell distance to know courant number?
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sairamprasad
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how to evaluate cell distance in order to find the courant number, is the characteristic length obtained during mesh quality check similar to the cell distance or different, if so, explain how to evaluate cell distance in order to have the correct time step size?
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Old   July 3, 2023, 11:08
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Quote:
Originally Posted by sai_ram View Post
how to evaluate cell distance in order to find the courant number, is the characteristic length obtained during mesh quality check similar to the cell distance or different, if so, explain how to evaluate cell distance in order to have the correct time step size?
u can see the overall volume using custom field functions and take the cube root of it to get the del x. like (vol)^1/3.
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cell displacement, characteristic length, courant number


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