Numerical simulation of transonic buffet and its control using tangential jet blowing

Ksenia Abramova, Kamil Khairullin, Alexander Ryzhov, Vitaly Soudakov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The unsteady interaction between a shock wave and boundary layer over a transonic wing can lead to the generation of considerable separation zones and periodical shock wave motion along the airfoil chord. The phenomenon is called transonic buffet. In the present work the buffet phenomenon on a transonic airfoil is simulated numerically using second order finite-volume method. Unsteady Reynolds Averaged Navier-Stokes (URANS) equations with different turbulence models are integrated. Transonic airfoil P-184-15SR of TsAGI is used as a reference geometry with Reynolds number ∼2.6×106. The buffet onset boundary is calculated for different free-stream Mach numbers. Active flow control method is proposed to alleviate the buffet onset. In this method, jet is blown tangentially near the shock wave on the upper airfoil surface. Parametric studies are performed. In all cases tangential blowing leads to significant lift growth and buffet alleviation.

Original languageEnglish
Title of host publicationECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering
EditorsG. Stefanou, V. Papadopoulos, V. Plevris, M. Papadrakakis
PublisherNational Technical University of Athens
Pages1455-1463
Number of pages9
ISBN (Electronic)9786188284401
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016 - Crete, Greece
Duration: 5 Jun 201610 Jun 2016

Publication series

NameECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering
Volume1

Conference

Conference7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016
Country/TerritoryGreece
CityCrete
Period5/06/1610/06/16

Keywords

  • Buffet
  • Flow control
  • Tangential jet blowing
  • Transonic flow
  • URANS

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