Introduction To The Renault Equation

- Jun 30, 2019-

Introduction to the Renault equation

The British physicist who proposed this equation, Renault believes that when the viscous incompressible fluid acts as a turbulent flow, the instantaneous parameters in the flow field: the pressure and velocity components, still satisfy the Navier-Stokes equation, and the instantaneous The parameters are decomposed into time averages and pulsation values that fluctuate above and below the time average. Substituting them into the above equation and taking time averaging, the turbulent motion equation expressed by the average amount can be obtained. Renault himself used the time-average method, and later generations also used the statistical average method, which are called the Reynolds equation.