High Temperature

, Volume 50, Issue 3, pp 323–330

High-frequency actuator control of air flow near a circular cylinder: Impact of the discharge parameters on the cylinder aerodynamic drag

Authors

    • Joint Institute for High Temperatures
  • A. I. Klimov
    • Joint Institute for High Temperatures
  • I. A. Moralev
    • Joint Institute for High Temperatures
Plasma Investigations

DOI: 10.1134/S0018151X12030145

Cite this article as:
Kazanskyi, P.N., Klimov, A.I. & Moralev, I.A. High Temp (2012) 50: 323. doi:10.1134/S0018151X12030145

Abstract

The impact of capacitive high-frequency surface discharge on a flow around a circular cylinder is studied at airflow velocity of 20–100 m/s and the Reynolds numbers Re < 2.4 × 105. The power of the discharge was modulated at a frequency of 102–104 Hz, corresponding to the Strouhal number St = 0.1–10. It is shown that the distribution of pressure in the wake behind the cylinder is significantly influenced by the discharge. A decrease in the average diameter of the wake is observed. The parameters of the discharge were measured: the gas temperature, heating rate in the discharge region, and velocity of discharge propagation.

Copyright information

© Pleiades Publishing, Ltd. 2012