The response of a self-similar adverse pressure gradient turbulent boundary layer at the verge of separation to surface roughness
Abstract
We propose a novel method for low voltage ionic wind generation using an innovative electromagnetic plasma device. The device allows for the injection of initiation carriers prior to discharge, resulting in a substantial reduction in breakdown voltage and the creation of stable atmospheric plasma. Additionally, Lorentz-force driven plasma generation introduces a new form of ionic wind, such as vortex and straight airflow, without increasing the applied voltage. The electromagnetic plasma actuation enables steady plasma movements on the electrodes, minimizing sputtering induced failures and significantly improving the lifespan of device. Simultaneously, the impact of plasma movements on airflow will be evaluated using a hot-wire anemometer and high-speed images. The experimental results will provide valuable insights into the electric-wind conversion process and suggests guidelines for designing electrodes suitable for various ionic wind generation. Through the fabrication of integrated plasma devices, we aim to demonstrate the scalability of the proposed device and investigate the feasibility of active airflow control without the need for high voltage sources. The anticipated outcome of this study will be transformative as it will present highly stable ionic wind generation at a low voltage and introduce new forms of ionic wind.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA23862414025
Entities
People
- Julio Soria
Organizations
- Air Force Office of Scientific Research
- Monash University
- United States Air Force