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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › LS PrePost – Pulsatile Inlet Velocity Keyword error › Reply To: LS PrePost – Pulsatile Inlet Velocity Keyword error

May 3, 2024 at 2:46 am
Reno Genest
Ansys Employee

Hello Andy,

What you are doing seems correct to apply a pulsating inlet velocity with the ICFD solver in LS-DYNA. You are using the *ICFD_BOUNDARY_PRESCRIBED_VEL keyword and specifying the pulsating inlet velocity using a load curve with *DEFINE_CURVE_FUNCTION. Also, *ICFD_BOUNDARY_PRESCRIBED_VEL is  applied to part 1 which is the inlet.

The warning message is about the *ICFD_MAT ID=1 card. Could you post a screenshot of *ICFD_MAT  ID=1 in your model? Are load curves ID 1701669236 and 41 refered to in *ICFD_MAT ID=1? Do you have these load curves defined in your model with the *DEFINE_CURVE keyword?

 

Also, what happens if you run this model with the LS-DYNA solver? Do you get an error message? If so, what is it?

 

Reno.

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