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

gslee
gslee New Altair Community Member
edited October 2020 in Community Q&A

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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Answers

  • Andy_20955
    Andy_20955 New Altair Community Member
    edited August 2019

    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

  • gslee
    gslee New Altair Community Member
    edited August 2019

    Thank you so much

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