A method of calculating aircraft wake velocity profiles and comparison with full-scale experimental measurements

Autor:	Coleman duP. Donaldson, Roger D. Sullivan, Richard S. Snedeker
Rok vydání:	1974
Předmět:	Physics::Fluid Dynamics Lift (force) Physics Wing Classical mechanics Inviscid flow Full scale Mechanics Wake Vorticity Tower Vortex
Zdroj:	12th Aerospace Sciences Meeting.
DOI:	10.2514/6.1974-39
Popis:	A method is developed for the calculation of the initial inviscid form of rolled-up wake vortices behind a wing having arbitrary lift distribution. The method makes use of the Betz assumptions of conservation of wake vorticity and moments of vorticity. It is found that a simple relationship exists between the radial distribution of vorticity in the rolled-up wake and the spanwise lift distribution. Computed tangential velocity profiles for DC-7, DC-9, and C-141 aircraft are shown to compare favorably with profiles measured by the FAA during tower flyby tests of these aircraft in both flapped and unflapped configurations. (Author)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6bef5e5f233483765a73ca496cc0f80 https://doi.org/10.2514/6.1974-39 Zobrazit plný text záznamu