25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-P2.12

NUMERICAL STUDY OF THE PERFORMACE IMPROVEMENT OF SUBMERGED AIR INTAKES USING VORTEX GENERATORS

C. C. Perez, S. B. Ferreira, L. F. Figueira Da Silva, A. B. de Jesus*, G. L. Oliveira*
Pontificia Universidade Catolica do Rio de Janeiro, Brazil; *Empresa Brasileira de Aeronáutica SA, Brazil

Keywords: air intake, transport aircraft, vortex generator

We examine the use of delta wing type vortex generators, placed upstream to the intake and external to the boundary layer, to enhance the performance of a NACA intake. Increases of intake mass flow ratio and ram-recovery ratio of up to 25% and 45%, respectively, occur.

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