A penalty model of synthetic micro-jet actuator with application to the control of wake flows

Richard Pasquetti (1, 2) , Noele Peres (1)

1 LJAD - Laboratoire Jean Alexandre Dieudonné
2 CASTOR - Control, Analysis and Simulations for TOkamak Research

A simple model of synthetic (zero-net mass-flux) micro-jet is proposed and implemented in a large-eddy simulation spectral solver of the incompressible Navier–Stokes equations. Essentially, it is simply required to introduce a penalty like term in the momentum equation, with a variable penalty coefficient that culminates during the expulsion phase. Examples of applications are considered for the control of several turbulent wake flows, the backward facing step, the D-shaped body and the square back Ahmed body.

Domaines: Milieux fluides et réactifs

Richard Pasquetti, Noele Peres. A penalty model of synthetic micro-jet actuator with application to the control of wake flows. Computers and Fluids, 2015, pp.203-217. ⟨10.1016/j.compfluid.2015.02.019⟩. ⟨hal-01144703⟩