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  3. When using Explicit Dynamics or Autodyn Component systems to simulate explosions, how to calculate the specific internal energy for the ambient air?

When using Explicit Dynamics or Autodyn Component systems to simulate explosions, how to calculate the specific internal energy for the ambient air?

Tagged: 17, autodyn, explicit-dynamics, General, structural-mechanics
    • January 25, 2023 at 7:34 am
      FAQFAQ
      Participant

      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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