When
Thursday, November 14, 2024 - 4:00 p.m.
Sally Bane
Associate Professor of Aeronautics and Astronautics
Director of Laboratory and Hands-On Education
Purdue University
"Ultra-Short Pulsed Plasmas for Flow and Combustion Control"
AME Lecture Hall, Room S212
Zoom link
Abstract: Atmospheric pressure plasmas are used in applications across a wide range of areas in science and engineering including flow and combustion control, biomedicine, materials processing, nanotechnology, and environmental engineering. In recent years, nanosecond repetitively pulsed (NRP) discharges have attracted great interest due to their extremely efficient generation of excited, radical, and ionized species at atmospheric pressure. It is critical to understand the chemical species production and temperature evolution in these plasmas for advancement of plasma-based technologies. Such knowledge would permit the development of highly tailored plasma sources that can produce plasmas with spatio-temporal and thermochemical characteristics that are customized to a variety of applications with broad societal impact. This presentation will provide an overview of current research efforts at Purdue University on development and characterization of plasma actuators based on NRP discharges for use in aerospace applications. Development of time-resolved plasma measurement techniques using streak-spectroscopy and ultrafast lasers will be presented. Efforts to characterize the local flow field induced by the rapid plasma heating using optical diagnostics will also be discussed. Finally, ongoing work to employ these NRP plasmas for control of high-speed flows and combustion will be presented.
Bio: Sally Bane is an associate professor and the director of laboratory and hands-on education in the School of Aeronautics and Astronautics at Purdue University. She received her BS in aerospace engineering from the University of Virginia and her MS and PhD in aeronautics from the California Institute of Technology. Dr. Bane's research interests span a broad range of problems in plasmas, high-speed flows and combustion. She is a founding member of Purdue's Cold Plasmas Preeminent Team, an interdisciplinary cohort of faculty studying nonequilibrium plasmas for a wide range of engineering and scientific applications. Dr. Bane's plasma research focuses on ultra-fast plasma spectroscopy, plasma-induced flow diagnostics and plasma flow and combustion control. She received an AFOSR Young Investigator award to study high-pressure plasma-assisted combustion and continues to explore ways to use plasma-based actuators to control high-speed aerodynamic flows and turbulent combustion. Dr. Bane is also involved in hypersonics research at Purdue, focusing on non-intrusive optical diagnostics for accurate measurements of high-speed turbulent flows and active control of boundary layers and shock wave/boundary layer interaction.