NDLI: Alesep. part 2: a computer program for the analysis of leading edge separation bubbles on infinite swept wings

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Alesep. part 2: a computer program for the analysis of leading edge separation bubbles on infinite swept wings

Content Provider	NASA Technical Reports Server (NTRS)
Author	Davis, R. L.
Copyright Year	1986
Description	A program called ALESEP is presented for the analysis of the inviscid-viscous interaction which occurs due to the presence of a closed laminar-transitional separation bubble on an airfoil or infinite swept wing. The ALESEP code provides an iterative solution of the boundary layer equations expressed in an inverse formulation coupled to a Cauchy integral representation of the inviscid flow. This interaction analysis is treated as a local perturbation to a known solution obtained from a global airfoil analysis; hence, part of the required input to the ALESEP code are the reference displacement thickness and tangential velocity distributions. Special windward differencing may be used in the reversed flow regions of the separation bubble to accurately account for the flow direction in the discretization of the streamwise convection of momentum. The ALESEP code contains a forced transition model based on a streamwise intermittency function, a natural transition model based on a solution of the integral form of the turbulent kinetic energy equation, and an empirical natural transition model.
File Size	3572349
Page Count	75
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19860015193
Archival Resource Key	ark:/13960/t8gf5pp8t
Language	English
Publisher Date	1986-02-03
Access Restriction	Open
Subject Keyword	Aerodynamics Turbulence Statistical Analysis Interactional Aerodynamics Infinite Span Wings Airfoils Perturbation Computer Programs Bubbles Iterative Solution Swept Wings Cauchy Integral Formula Inviscid Flow Kinetic Energy Separated Flow Leading Edges Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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