Speed of sound in a non-ideal gas


  • William Squire

    1. Department of Applied Mechanics, Southwest Research Institute, San Antonio, Texas, U.S.A.
    Current affiliation:
    1. Department of Aero-Space Engineering, West Virginia University, Morgantown, West Virginia, U.S.A.
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A method is proposed for computing the speed of sound in a non-ideal gas based on the approximation

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In conjunction with the usual generalized compressibility plot and an analogous reduced enthalpy correction plot, it can be used near the critical point of a non-dissociating gas. The method is also applicable to highly dissociated and ionized gases.