Experimental flow studies on separation and reattachment in the vicinity of sharp,wedge shaped leading edges at low Reynolds numbers
2010 (English)In: New Results In Numerical And Experimental Fluid Mechanics VII, Springer Berlin/Heidelberg, 2010, 273-280 p.Conference paper (Refereed)
The flow field around sharp leading edges in subsonic, low Reynolds number flow is investigated experimentally. Separation occurs already at small angles of attack. Under certain conditions reattachment takes place and a separation bubble develops. As this influences the lift and drag of an airfoil decisively, the conditions leading to reattachment and the formation of a laminar boundary layer are of special interest. The influences of the Reynolds number, angle of attack and leading edge apex angle on the boundary layer properties are studied by means of hot-wire anemometry, flow visualisation techniques and measurements of the pressure distribution over the leading edge. For a small parameter range, laminar separation followed by laminar reattachment is observed.
Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2010. 273-280 p.
, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, ISSN 1612-2909 ; 112
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-149717DOI: 10.1007/978-3-642-14243-7_34ISI: 000290183500034ScopusID: 2-s2.0-77958187999ISBN: 978-3-642-14242-0OAI: oai:DiVA.org:kth-149717DiVA: diva2:741450
16th DGLR/STAB Symposium, Nov 03-04, 2008,Eurogress Aachen, Aachen, Germany
QC 201408282014-08-282014-08-262014-08-28Bibliographically approved