Chaplygin's equation

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In gas dynamics, Chaplygin's equation, named after Sergei Alekseevich Chaplygin, is a partial differential equation useful in the study of transonic flow.[1] It is

Here, is the speed of sound, determined by the equation of state of the fluid and conservation of energy.

See also[edit]


  1. ^ Landau, L. D.; Lifshitz, E. M. (1982). Fluid Mechanics (2 ed.). Pergamon Press. p. 432.