Kovasznay flow

Kovasznay flow corresponds to an exact solution of the Navier–Stokes equations and are interpreted to describe the flow behind a two-dimensional grid.

The flow is named after Leslie Stephen George Kovasznay, who discovered this solution in 1948.

[1] The solution is often used to validate numerical codes solving two-dimensional Navier-Stokes equations.

of the Kovaszany flow, expressed in the Cartesian coordinate system is given by[2] where

represents the Reynolds number of the flow.

The root that describes the flow behind the two-dimensional grid is found to be The corresponding vorticity field

are given by Similar exact solutions, extending Kovasznay's, has been noted by Lin and Tobak[3] and C. Y.