DNS Study of spatial discrete suction for Laminar Flow Control

Ralf Messing () and Markus Kloker ()
Additional contact information
Ralf Messing: Universität Stuttgart, Institut für Aerodynamik und Gasdynamik
Markus Kloker: Universität Stuttgart, Institut für Aerodynamik und Gasdynamik

A chapter in High Performance Computing in Science and Engineering’ 04, 2005, pp 163-175 from Springer

Abstract: Abstract By means of spatial direct numerical simulations (DNS) based on the complete Navier-Stokes equations the effect of three-dimensional discrete suction on the spatial development of a laminar boundary-layer flow generic for the front part of a swept-back airliner wing has been investigated. The baseflow is an accelerated Falkner-Skan-Cooke boundary layer, on a swept wedge with semi-opening angle of 45° (Hartree parameter β H = 0.5) which is mainly characterised by crossflow instability. The simulations of the microscale phenomena confirm that 3-d suction at the wall can excite unstable crossflow disturbances that have to be minimised by using either slot arrays or hole arrays with high porosity, otherwise the stabilising (2-d) effect of suction is compromised. Premature transition through oversuction could be identified as a convective secondary instability of the flow field deformed by strong steady crossflow vortices emerging from the suction panel.

Keywords: Direct Numerical Simulation; Suction Orifice; Linear Stability Theory; Hole Array; Slot Suction (search for similar items in EconPapers)
Date: 2005
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-26589-4_18

Ordering information: This item can be ordered from
http://www.springer.com/9783540265894

DOI: 10.1007/3-540-26589-9_18

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().