RANS MODELING AND SIMULATIONS OF SYNTHETIC JETS

RANS simulations of boundary layer flows with stationary and pulsating active control devices have been carried out. Two computational codes and several turbulence models have been compared to available experimental data. Two configurations have been selected: a twodimensional bump with a slot and a threedimensional circular, oscillating jet. The results for the first test case indicate that the sensitivity of the results to the choice of the RANS closure is higher for the flow without control. None of the model used allows to predict this baseline flow with satisfactory agreement. The results for the threedimensional problem are in good agreement with the measurements away from the orifice but pronounced differences are observed in the vicinity of the jet.