Stability of time dependent and spatially varying flows : proceedings of the Symposium on the Stability of Time Dependent and Spatially Varying Flows, held August 19-23, 1985, at NASA Langley Research Center, Hampton, Virginia

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Stability of time dependent and spatially varying flows : proceedings of the Symposium on the Stability of Time Dependent and Spatially Varying Flows, held August 19-23, 1985, at NASA Langley Research Center, Hampton, Virginia

edited by D.L. Dwoyer and M.Y. Hussaini

Springer-Verlag, c1987

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Papers presented at a workshop sponsored by the Institute for Computer Applications in Science and Engineering and NASA Langley Research Center, Aug. 19-23, 1985

Includes bibliographies

Description and Table of Contents

Description

This volume is the collection of papers presented at the workshop on 'The Stability of Spatially Varying and Time Dependent Flows" sponsored by the Institute for Computer Applications in Science and Engineering (lCASE) and NASA Langley Research Center (LaRC) during August 19- 23, 1985. The purpose of this workshop was to bring together some of the experts in the field for an exchange of ideas to update the current status of knowledge and to help identify trends for future research. Among the invited speakers were D.M. Bushnell, M. Goldstein, P. Hall, Th. Herbert, R.E. Kelly, L. Mack, A.H. Nayfeh, F.T. Smith, and C. von Kerczek. The contributed papers were by A. Bayliss, R. Bodonyi, S. Cowley, C. Grosch, S. Lekoudis, P. Monkewitz, A. Patera, and C. Streett. In the first article, Bushnell provides a historical background on laminar flow control (LFC) research and summarizes the crucial role played by stability theory in LFC system design. He also identifies problem areas in stability theory requiring further research from the view-point of ap plications to LFC design. It is an excellent article for theoreticians looking for some down-to-earth applications of stability theory.

Table of Contents

Application of Stability Theory to Laminar Flow Control-Progress and Requirements.- On Secondary Instabilities in Boundary Layers.- Floquet Analysis of Secondary Instability in Shear Flows.- The Generation of Tollmien-Schlichting Waves by Long Wavelength Free Stream Disturbances.- Numerical Experiments on Boundary-Layer Receptivity.- The Linear Stability of the Incompressible Boundary Layer on an Ellipsoid at Six Degrees Incidence.- Non-Linear Effects and Non-Parallel Flows: The Collapse of Separating Motion.- On Short-Scale Inviscid Instabilities in the Flow Past Surface- Mounted Obstacles.- Review of Linear Compressible Stability Theory.- Wave Phenomena in a High Reynolds Number Compressible Boundary Layer.- Instability of Time-Periodic Flows.- Stability Characteristics of Some Oscillatory Flows-Poiseuille, Ekman and Films.- The Stability of the Stokes Layer: Visual Observations and Some Theoretical Considerations.- High Frequency Rayleigh Instability of Stokes Layers.- Ginzburg-Landau Equation: Stability and Bifurcations.- Stability and Resonance in Grooved-Channel Flows.- Finite Length Taylor Couette Flow.- Vortical Structures in the Breakdown Stage of Transition.

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