When using Explicit Dynamics or Autodyn Component systems to simulate explosions, how to calculate the specific internal energy for the ambient air?
January 25, 2023 at 7:34 amFAQParticipant
The following formula can be used to get the correct specific internal energy of ambient air. E=P/(rho*(GAMA-1)), where P is air ambient pressure, GAMA is the ideal gas constant (usually 1.4), rho is the air ambient density. When the system units is mm/mg/ms, the specific internal energy of ambient air is 2.068E5 J/Kg.
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