Detail publikace

Energy Efficient Active Control of the Flow Past Aircraft Wings

SKAROLEK, V. KARAMPELAS, S.

Originální název

Energy Efficient Active Control of the Flow Past Aircraft Wings

Anglický název

Energy Efficient Active Control of the Flow Past Aircraft Wings

Typ

článek v časopise - ostatní, Jost

Jazyk

čeština

Originální abstrakt

Numerical simulations of the flow past a NACA 0015 wing with active control have been performed. The Reynolds number of the flow is 2.5 x 106. The configuration proposed in this study does not follow the conventional active control methodology past wings. Large blowing surfaces and low jet velocity magnitudes are considered and the energy efficiency of such configuration is examined for a number of variants. One major impact on the flow is the diffusion of the tip vortex core in the trailing edge area, but also farther downstream. Strategies for drag reduction and lift increase of the wing are proposed by varying some of the actuation parameters. The present active flow control could be efficient at all angles of attack, while in the same time could be able to reduce significantly the total drag of the wing, increase the total lift or combine effectively those favorable effects for better flight performance. Maximum drag decrease could exceed 40% of the total drag at low angles of attack, with still positive energy income.

Anglický abstrakt

Numerical simulations of the flow past a NACA 0015 wing with active control have been performed. The Reynolds number of the flow is 2.5 x 106. The configuration proposed in this study does not follow the conventional active control methodology past wings. Large blowing surfaces and low jet velocity magnitudes are considered and the energy efficiency of such configuration is examined for a number of variants. One major impact on the flow is the diffusion of the tip vortex core in the trailing edge area, but also farther downstream. Strategies for drag reduction and lift increase of the wing are proposed by varying some of the actuation parameters. The present active flow control could be efficient at all angles of attack, while in the same time could be able to reduce significantly the total drag of the wing, increase the total lift or combine effectively those favorable effects for better flight performance. Maximum drag decrease could exceed 40% of the total drag at low angles of attack, with still positive energy income.

Klíčová slova

active flow control; control surfaces; high Reynolds; wing; blowing; drag reduction

Klíčová slova v angličtině

active flow control; control surfaces; high Reynolds; wing; blowing; drag reduction

Autoři

SKAROLEK, V.; KARAMPELAS, S.

Rok RIV

2012

Vydáno

19. 10. 2012

Nakladatel

VUT v Brně

Místo

VUT v Brně

ISSN

1425-2104

Periodikum

RESEARCH BULLETIN

Ročník

2012

Číslo

22

Stát

Polská republika

Strany od

1

Strany do

22

Strany počet

22

BibTex

@article{BUT98492,
  author="Vilém {Skarolek} and Stavros {Karampelas}",
  title="Energy Efficient Active Control of the Flow Past Aircraft Wings",
  journal="RESEARCH BULLETIN",
  year="2012",
  volume="2012",
  number="22",
  pages="1--22",
  issn="1425-2104"
}