Accession Number : AD1051109

Title :   Turbulent Flow Modification With Thermoacoustic Waves for Separation Control

Descriptive Note : Technical Report,01 Jun 2014,31 May 2017

Corporate Author : Florida State University Tallahassee United States

Personal Author(s) : Taira, Kunihiko ; Yeh,Chi-An ; Munday,Phillip M

Full Text :

Report Date : 24 Aug 2017

Pagination or Media Count : 51

Abstract : The objective of the proposed three-year study is to examine the effectiveness of high intensity acoustic waves emitted from a thermoacoustic actuator for active separation control of flow over a wall-mounted hump. A novel graphene-membrane based thermoacoustic actuator is considered as the source of acoustic waves. Carbon based materials have high conductivity which allows for extremely high power efficiency for sound generation. Furthermore, such membrane only requires alternating current to be applied, making it attractive from the point of view of implementation since the actuator can be surface-compliant with minimal weight additions.

Descriptors :   turbulent mixing , computational fluid dynamics , boundary layer , flow visualization , acoustic waves , free stream , heat transfer , vortex shedding , hydrodynamics , pressure distribution , reynolds number , turbulent flow , Thermoacoustics

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE