NDLI: Evolution of disturbances in stagnation point flow

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Evolution of disturbances in stagnation point flow

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lasseigne, D. Glenn Criminale, William O. Jackson, Thomas L.
Copyright Year	1993
Description	The evolution of three-dimensional disturbances in an incompressible three-dimensional stagnation-point flow in an inviscid fluid is investigated. Since it is not possible to apply classical normal mode analysis to the disturbance equations for the fully three-dimensional stagnation-point flow to obtain solutions, an initial-value problem is solved instead. The evolution of the disturbances provide the necessary information to determine stability and indeed the complete transient as well. It is found that when considering the disturbance energy, the planar stagnation-point flow, which is independent of one of the transverse coordinates, represents a neutrally stable flow whereas the fully three-dimensional flow is either stable or unstable, depending on whether the flow is away from or towards the stagnation point in the transverse direction that is neglected in the planar stagnation point.
File Size	1012390
Page Count	30
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940009251
Archival Resource Key	ark:/13960/t2z36r00f
Language	English
Publisher Date	1993-08-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Flow Stability Incompressible Flow Boundary Value Problems Fluid Dynamics Three Dimensional Flow Modal Response Stagnation Point Inviscid Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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