Publication detail

Energy efficient active control of the flow past an aircraft wing: RANS and LES evaluation

SKAROLEK, V. KARAMPELAS, S.

Original Title

Energy efficient active control of the flow past an aircraft wing: RANS and LES evaluation

English Title

Energy efficient active control of the flow past an aircraft wing: RANS and LES evaluation

Type

journal article in Web of Science

Language

en

Original Abstract

Numerical simulations of the flow past a NACA 0015 wing with active control have been performed. The Reynolds number of the flow based on the wing's chord is Re = 2.5 × 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. The present actuation reduces the profile drag of the wing and influences the flow mainly in two dimensions. Maximum drag decrease could be close to 40% at low angles of attack, with still positive energy income. Supportive Large Eddy Simulations at Re = 2.2 × 105 verify the trends of this control, which are predicted by Reynolds Averaged Navier–Stokes modelling.

English abstract

Numerical simulations of the flow past a NACA 0015 wing with active control have been performed. The Reynolds number of the flow based on the wing's chord is Re = 2.5 × 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. The present actuation reduces the profile drag of the wing and influences the flow mainly in two dimensions. Maximum drag decrease could be close to 40% at low angles of attack, with still positive energy income. Supportive Large Eddy Simulations at Re = 2.2 × 105 verify the trends of this control, which are predicted by Reynolds Averaged Navier–Stokes modelling.

Keywords

Active flow control; High Reynolds; Wing; blowing; Drag reduction; LES

RIV year

2015

Released

21.10.2015

Publisher

Elsevier Inc.

Location

USA

Pages from

1

Pages to

26

Pages count

26

URL

Documents

BibTex


@article{BUT118017,
  author="Vilém {Skarolek} and Stavros {Karampelas}",
  title="Energy efficient active control of the flow past an aircraft wing: RANS and LES evaluation",
  annote="Numerical simulations of the flow past a NACA 0015 wing with active control have been performed. The Reynolds number of the flow based on the wing's chord is Re = 2.5 × 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. The present actuation reduces the profile drag of the wing and influences the flow mainly in two dimensions. Maximum drag decrease could be close to 40% at low angles of attack, with still positive energy income. Supportive Large Eddy Simulations at Re = 2.2 × 105 verify the trends of this control, which are predicted by Reynolds Averaged Navier–Stokes modelling.",
  address="Elsevier Inc.",
  chapter="118017",
  doi="10.1016/j.apm.2015.09.028",
  howpublished="online",
  institution="Elsevier Inc.",
  number="2015",
  volume="1-26",
  year="2015",
  month="october",
  pages="1--26",
  publisher="Elsevier Inc.",
  type="journal article in Web of Science"
}