Critical velocity of gas

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Abstract

Expression of critical velocity, based on thermodynamic consideration was obtained and is given by the following equation:

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or the ratio between the critical velocity and that of a corresponding ideal gas is given by

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Numerical values of X and Y were computed and presented on the generalized plot basis. Together with the value of heat capacity, this method enables the rapid calculation of critical velocity of real gas when the deviation from ideal gas behavior is significant.

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