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Is there another way to reduce the time step except making mesh size small?

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Hi,

 

CST setting ensures that time step is not less than user-defined value but it does not make time step smaller.

 

Is there another way to reduce the time step except making mesh size small?

 

Thanks

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You can use the engine option,

/DTIX to manually set a initial and maximum time step for Radioss such as,

 

/DTIX

1e-9 1e-9

 

Another option is to reduce the time step scale factor from the default value of 0.9 to say 0.1. 

/DT

0.1 0.0

 

Thanks,

Andy

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