Rankine-Hugoniot equations

Rankine-Hugoniot equations

[′raŋ·kən yü′gō·nē·ō i‚kwā·zhənz]
(thermodynamics)
Equations, derived from the laws of conservation of mass, momentum, and energy, which relate the velocity of a shock wave and the pressure, density, and enthalpy of the transmitting fluid before and after the shock wave passes.