See discussions, stats, and author profiles for this publication at: CFD MODELING OF A SYNTHETIC JET ACTUATORArticle· January 2009DOI: 10.1615/ICHMT.2009.CONV.430CITATIONS0READS6203 authors:Some of the authors of this publication are also working on these related projects:Modeling of heat and mass transfer with the Lattice Boltzmann Method (LBM)View projectLATTICE BOLTZMANN SIMULATIONView projectMarouen DghimUniversité de Sherbrooke/Royal Military College of Canada15PUBLICATIONS23CITATIONSSEE PROFILEMaher Ben ChiekhUniversity of Monastir24PUBLICATIONS141CITATIONSSEE PROFILESassi Ben NasrallahNational Engineering School of Monastir514PUBLICATIONS6,984CITATIONSSEE PROFILEAll content following this page was uploaded by Sassi Ben Nasrallah on 19 February 2015.The user has requested enhancement of the downloaded file.
Int. Symp. on Convective Heat and Mass Transfer in Sustainable Energy April 26 – May 1, 2009, Tunisia CFD MODELING OF A SYNTHETIC JET ACTUATOR Marouane Dghim*, Maher Ben Chiekh* and Ben Nasrallah SassiLESTE-Laboratoire d’Etudes des Systèmes Thermiques et Energétiques National Engineering School of Monastir Ibn El Jazzar Avenue, P.O. Box 5019, Monastir, Tunisia (*Corresponding authors: [email protected] , [email protected])ABSTRACT. Synthetic jet actuators show good promise as an enabling technology for innovative boundary layer flow control applied to external surfaces, like airplane wings, and to internal flows, like those occurring in a curved engine inlet. The appealing characteristics of a synthetic jet are zero-net-mass –flux operation and an efficient control effect that takes advantages of unsteady fluid phenomena. The formation of a synthetic jet in a quiescent external air flow is only beginning to be understood and a rational understanding of these devices is necessary before they can be applied to the control of flows outside of the laboratory. The synthetic jet flow generated by a planar orifice is investigated here using computational approach. Computations of the 2D synthetic jet are performed with unsteady RANS modeled with the Realizable turbulence model available in FLUENT environment. In this present work, the ability of the first order turbulence model, employed in our computations, to model the formation of the counter-rotating-vortex pair (CVP) that appears in the flow-field was investigated. Computational results were in good agreement with experimental measurements. The effectiveness of such control actuator was tested on separated boundary layer. Preliminary investigation were presented and discussed. INTRODUCTION Synthetic jet actuators have been shown to be a useful tool for flow control, with applications including mixing enhancement, separation control, and thrust vectoring.