Interaction of Vortex Breakdown with a Flexible Fin and its Control, Phase-3
Abstract
This report results from a contract tasking University of Bath as follows: The proposed research is the third (and last) phase for a comprehensive study on the interaction of vortex breakdown with a flexible fin. The study is to conclude with a summary on the techniques that would control or reduce these interactions. The first two phases were supported by AFOSR. In the first phase, the effect of fin deflections on vortex breakdown was investigated. In the second phase, the interaction with vortex breakdown, by using a flexible fin was developed. In this phase, alternative control techniques applied on or around the fin, such as 1) Application of suction on the fin; 2) Blowing jet at the trailing edge of the fin; 3) Use of synthetic jet at the trailing edge will be investigated. Initial experiments will be performed in the water tunnel for the sake of flow visualization. Additional experiments in the 2.12m x 1.51m low-speed wind tunnel will be performed to demonstrate the applicability of the proposed control methods at higher Reynolds numbers. The results will also serve as a verification tool for the on-going numerical simulations performed at AFRL/VA.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 24, 2001
- Accession Number
- ADA396726
Entities
People
- Ismet Gursul
Organizations
- University of Bath