Active Control of Flow over a Backward-Facing Ramp by Sweeping Jet Actuator

EasyChair Preprint 13120

Abstract

This study examines the effects of the sweeping jet actuator on the separated turbulent flow occurring on a backward-facing ramp. The actuator is embedded in the ramp. An unsteady flow analysis has been carried out using 2D Reynolds-Averaged Navier-Stokes equations with a k-w SST turbulence model. The effects of the actuator on flow topology and static pressure distribution are analyzed to understand the drag reduction mechanism. The interaction of the oscillating jet, generated by the actuator, with the main flow generates spanwise vortices which is important in transporting the high-momentum flow to the low-momentum separation region, helping to reduce the recirculation length.

Keyphrases: Backward-facing ramp, Sweeping jet actuator, flow control

@booklet{EasyChair:13120,
  author    = {Abderrahim Serrar and Mohamed El Khlifi and Azeddine Kourta},
  title     = {Active Control of Flow over a Backward-Facing Ramp by Sweeping Jet Actuator},
  howpublished = {EasyChair Preprint 13120},
  year      = {EasyChair, 2024}}