Influence of transition location on airfoil drag

Autor:	Eduardas Lasauskas
Jazyk:	angličtina
Rok vydání:	2005
Předmět:	laminar – turbulent transition linear stability theory e n method laminar separation bubble drag Motor vehicles. Aeronautics. Astronautics TL1-4050
Zdroj:	Aviation, Vol 9, Iss 3 (2005)
Druh dokumentu:	article
ISSN:	16487788 1648-7788 1822-4180
DOI:	10.3846/16487788.2005.9635906
Popis:	A comparison of predicted and measured laminar‐turbulent transition on the airfoil is presented. The MSES code is used for a prediction. The experimental data are taken from an experiment of W. Würz. Comparison of calculated results with measured data shows that the envelope of calculated individual frequencies coincides well with measured data in the transitional region for the attached boundary layer and for the separated laminar shear layer. For minimum drag, the laminar flow should be as long as possible and the shape parameter of the boundary layer at the transition should not exceed the value of 3.8. The optimum value of the shape parameter is 3.65 at Reynolds numbers from 1 to 2 million. First Published Online: 14 Oct 2010
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/4f7b678f028248b68c48e25baac2787e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF