Experimental study of mesoflaps for SBLI control

Derek L. Gefroh, Everett S. Hafenrichter, Barry M. Ford, J. Craig Dutton, Stephen T. McIlwain, Eric Loth

Research output: Contribution to conferencePaperpeer-review

Abstract

A concept termed Mesoflaps for Aeroelastic Transpiration (MAT) has the capability of controlling shock/boundary-layer interactions (SBLIs) through passive cavity recirculation. The MAT system consists of a matrix of small flaps covering an enclosed cavity that are designed to undergo local aeroelastic deflection to achieve proper mass bleed or injection when subjected to gas dynamic shock loads. Experimental investigations were performed to verify the applicability of the MAT concept for oblique shock interaction, including, shadowgraph flow visualizations, surface pressure measurements, and LDV traverses. The effect of altering the flap deflections, and thus transpiration characteristics, was investigated by changing the thickness of the flap array and the geometry of the underlying flap support structure. Evidence of improved post-shock impingement boundary-layer characteristics (reduced boundary layer thickness and turbulence intensity) over the baseline no-bleed case was seen for the most recent mesoflap design.

Original languageEnglish (US)
DOIs
StatePublished - 2000
Event38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States
Duration: Jan 10 2000Jan 13 2000

Other

Other38th Aerospace Sciences Meeting and Exhibit 2000
CountryUnited States
CityReno, NV
Period1/10/001/13/00

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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