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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › Transmit boundary – reflection / perturbation of pressure waves › Reply To: Transmit boundary – reflection / perturbation of pressure waves

December 18, 2024 at 3:41 pm
Chris Quan
Ansys Employee

Actually, for compressible materials, its sound speed may not be a constant. It should be related to dp/dr, where p is pressure, r is density. You can do a contour plot of sound speed to check its magnitude.

If the problem still persist with new Flow Out BC, you need to extend the Euler domain.