Publication detail

Energy Efficient Active Control of the Flow Past Aircraft Wings

SKAROLEK, V. KARAMPELAS, S.

Original Title

Energy Efficient Active Control of the Flow Past Aircraft Wings

English Title

Energy Efficient Active Control of the Flow Past Aircraft Wings

Type

journal article - other

Language

Czech

Original Abstract

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.

English abstract

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.

Keywords

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

Key words in English

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

Authors

SKAROLEK, V.; KARAMPELAS, S.

RIV year

2012

Released

19. 10. 2012

Publisher

VUT v Brně

Location

VUT v Brně

ISBN

1425-2104

Periodical

RESEARCH BULLETIN

Year of study

2012

Number

22

State

Republic of Poland

Pages from

1

Pages to

22

Pages count

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"
}