Control of laminar streaks and Görtler vortices in pre-transitional boundary layers

Abstract

Maintaining persistent laminar flow over high-speed vehicles and in supersonic wind-tunnel nozzles is essential: for vehicles, it minimizes friction drag and thermal load, while for wind tunnels, it ensures the development of facilities with low background turbulence. This thesis investigates the effects of active and passive control techniques on the receptivity and growth of laminar streaks and Görtler vortices in pre-transitional compressible boundary layers using asymptotic and numerical methods.

Metadata

Supervisors:	Pierre, Ricco
Related URLs:	Receptivity of compressible boundary layers over porous surfaces (Related publication)
Keywords:	compressible flow; boundary layer; receptivity; transition; laminar flow; flow control;
Awarding institution:	University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Mechanical Engineering (Sheffield)
Academic unit:	School of Mechanical, Aerospace and Civil Engineering
Depositing User:	Mr. Ludovico Fossa
Date Deposited:	10 Mar 2025 10:54
Last Modified:	10 Mar 2025 10:54
Open Archives Initiative ID (OAI ID):	oai:etheses.whiterose.ac.uk:36440

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Control of laminar streaks and Görtler vortices in pre-transitional boundary layers

Abstract

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Final eThesis - complete (pdf)

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