Seminar Series

Numerical investigations of boundary-layer flow transition control with Plasma Actuators

Speaker

Dr. Liang Wang

Institute

School of Aerospace Engineering, Tsinghua University, China

Time & Place

Fri, 19 Jul 2019 14:00:00 NZST in E14 (Lecture Theatre), Engineering CORE

All are welcome

Abstract

ontrolling the laminar-to-turbulent transition on aerodynamic surfaces is of great importance because the skin-friction drag is significantly lower for the laminar boundary-layer state. In recent years, interest increased in the application of dielectric barrier discharge (DBD) plasma actuators as transition-control devices. In this study, we investigate the potential use of DBD plasma actuators to control the crossflow instability of the boundary layer on a swept wing. The disturbance evolution is resolved using nonlinear parabolized stability equations. Actuators are mounted near the leading edge and generate an electric wind perpendicular to the crossflow vortex axes. The differences among actuator setups are discussed in detail, and the respective stabilization of the flow is scrutinized.

Mech Eng seminar, Liang Wang

Mech Eng seminar, Liang Wang

Biography

Dr. Liang Wang is an assistant professor in the School of Aerospace Engineering, Tsinghua University, China. He received his PhD from Tsinghua University in 2008. His research interests include transition/turbulence modeling, hybrid RANS/LES methods, and more recently nonequilibrium chemical kinetics. He has published over 50 archival articles, three book chapters, and in process to publish a book in transition/turbulence modelling by Cambridge University Press.

Mech Eng seminar, Liang Wang