Shock/boundary-layer interaction control with Aeroelastic Transpiration

B. Wood, E. Loth, P. H. Geubelle

Research output: Chapter in Book/Report/Conference proceedingChapter


A novel concept termed Mesoflaps for Aeroelastic Transpiration (MAT) is introduced and analyzed computationally. The concept has the capability to provide mass and momentum transfer to control shock/boundary-layer interactions (SBLIs). Such interactions can have adverse effects for supersonic mixed-compression inlets (which have impinging oblique-shocks) and on transonic external aerodynamic surfaces (which generate near-normal-shocks). The MAT concept consists of a matrix of small flaps (rigidly fixed at their upstream end) covering an enclosed cavity. These flaps are designed to undergo local aeroelastic deflection to achieve proper mass bleed or injection when subjected to gas dynamic shock loads. To investigate the behavior of the MAT system, detailed coupled aeroelastic finite element simulations are performed. The computations show that the mesoflap system can promote significant recirculation, as well as remove low-speed portions of the boundary layer after shock interaction.

Original languageEnglish (US)
Title of host publicationProceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM)
PublisherAmerican Society of Mechanical Engineers
Number of pages1
ISBN (Print)0791819612
StatePublished - 1999

ASJC Scopus subject areas

  • General Earth and Planetary Sciences
  • General Engineering
  • General Environmental Science


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