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Is there a relationship between Bottom Friction coeff. and Time Step?
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TOPIC: Is there a relationship between Bottom Friction coeff. and Time Step?

Is there a relationship between Bottom Friction coeff. and Time Step? 6 years 8 months ago #29323

  • ekechijioke
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I successfully ran a simulation using a Bottom Friction Coeff of 0.015 and a Time Step of 60 s. When I changed the Bottom Friction Coeff to 0.019, my simulation crashes. However, it begins to run when I increase the Time Step to 75 secs.

Since these are the only variables I have changed, I am wondering how they are related. As it seems my calibration process will involve altering both variables.
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Is there a relationship between Bottom Friction coeff. and Time Step? 6 years 6 months ago #29813

  • aleroy
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Hello,

I guess you are using the Nikuradse friction law? What advection scheme are you using?

Best regards,
Agnès
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Is there a relationship between Bottom Friction coeff. and Time Step?

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