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Finite Disturbance Effect on the Stability of a Laminar Incompressible Wake Behind a Flat Plate

Ko, Denny R. S. and Kubota, Toshi and Lees, Lester (1969) Finite Disturbance Effect on the Stability of a Laminar Incompressible Wake Behind a Flat Plate. Hypersonic Research Project Memorandum, 72. California Institute of Technology , Pasadena, CA. (Unpublished)

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An integral method is used to investigate the interaction between the stability of a single frequency finite amplitude disturbance with the non-parallel mean flow in a laminar, incompressible wake behind a flat plate. The mean flow is assumed to be characterized by a few shape parameters. The integrals involving the fluctuating components are determined as functions of those shape parameters by solving the inviscid Rayleigh equation of the linear stability theory using the local mean flow. The variations of the amplitude of the fluctuation and the mean flow in the streamwise direction are then determined from solving the set of ordinary differential equations. The effect of coupling between the mean flow and the fluctuation was found to be very important. The calculations show good agreement with the experimental data of Sato and Kuriki.

Item Type:Report or Paper (Technical Report)
Additional Information:Contract No. DA-31-124-ARO(D)-33 U.S. Army Research Office and the Advanced Rsesarch Projects Agency. This research is a part of Project DEFENDER sponsored by the Advanced Research Projects Agency.
Group:Hypersonic Research Project
Funding AgencyGrant Number
Army Research Office (ARO)DA-31-124-ARO(D)-33
Advanced Research Projects Agency (ARPA)UNSPECIFIED
Series Name:Hypersonic Research Project Memorandum
Issue or Number:72
Record Number:CaltechAUTHORS:20151201-133700798
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62507
Deposited On:03 Dec 2015 03:02
Last Modified:03 Oct 2019 09:19

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