Titlebook: IUTAM Symposium on Nonlinear Instability and Transition in Three-Dimensional Boundary Layers; Proceedings of the I Peter W. Duck,Philip Hal

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IUTAM Symposium on Nonlinear Instability and Transition in Three-Dimensional Boundary Layers978-94-009-1700-2Series ISSN 0926-5112 Series E-ISSN 2215-0056

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Fluid Mechanics and Its Applicationshttp://image.papertrans.cn/i/image/460615.jpg

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Non-Linear Instability and Transition in Flow Near a Swept Leading Edge divided into sections some of which are perforated to allow transpiration. Hot-wire probes have been used to investigate the instability and subsequent transition of the attachment-line flow with surface blowing. Where possible, comparisons have been made with other experimental work on swept cylinders and with theory.

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0926-5112 tests allow us to identify thoseelements of a particular problem which are dominant. This assists inboth the formulation of a relevant theoretical problem and 978-94-010-7261-8978-94-009-1700-2Series ISSN 0926-5112 Series E-ISSN 2215-0056

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The Nonlinear Evolution of Inviscid G?rtler Vortices in 3-D Boundary Layers: The Effects of Non-Domiurbance. The three different equations were an IDE with a cubic non-linearity due to viscous effects, an IDE with a cubic nonlinearity due to a novel mechanism and an IDE with a quintic nonlinearity. The choice as to which of these base IDEs is relevant for a given mode depends on the wa.venumber an

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On the Secondary Instability of G?rtler Vortices in Three-Dimensional Boundary Layersine the vortices’ spatial evolution and then at certain streamwise locations a finite amplitude copy of the vortex is added to the underlying basic flow and the resulting profile is analysed. The equations are solved using a combination of finite difference (fourth order on a stretched grid) and spe

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Generation, Development and Interaction of Instability Modes in Swept-Wing Boundary Layercs are independent of the properties of the disturbance generators and can be directly compared with stability and receptivity theories without any additional assumptions. The nonlinear interactions of steady and traveling instability waves were also studied at controlled disturbance conditions with

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Design and Control of Crossflow Instability Fieldf the obtained flow field where these instabilities are most amplified is drown. Directions and phase velocities of obtained disturbances are also measured, and indicated in one figure together with twisted boundary profiles. Secondary instability is successfully visualized by smoke visualization te