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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
281

The interaction of a normal shock with a non-equilibrium boundary layer

Hinchcliffe, Richard Andrew January 1993 (has links)
No description available.
282

Transition in boundary layer flows

Gardiner, I. D. January 1987 (has links)
An experimental investigation of transition in boundary layer flows under the influence of various freestream conditions is described. Velocity profiles are obtained automatically by means of a stepper-motor driven traverse mechanism which carries a hot wire probe connected to a constant temperature anemometer and associated instrumentation. This was achieved by use of a data acquisition and control facility centred around a microcomputer with a Eurocard rack mounted extension. The automatic boundary layer traverse is software controlled and the data obtained is stored in a disc file for subsequent analysis and graphical display. As an integral part of this facility a successful method of obtaining reliable intermittency values from a hot wire signal was developed. The influence of freestream turbulence and pressure gradient upon transition within a boundary layer developing on a flat plate is elucidated by a series of controlled experiments. From the data accumulated, the concept of statistical similarity in transition regions is extended to include moderate non-zero pressure gradients, with the streamwise mean intermittency distribution described by the normal distribution function. An original correlation which accounts for the influence of freestream turbulence in zero pressure gradient flows, and the combined influence of freestream turbulence and pressure gradient in adverse pressure gradient flows, on the transition length Reynolds number R, is presented. (The limited amount of favourable pressure gradient data precluded the extension of the correlation to include favourable pressure gradient flows). A further original contribution was the derivation of an intermittency weighted function which describes the development of the boundary layer energy thickness through the transition region. A general boundary layer integral prediction scheme based on existing established integral techniques for the laminar and turbulent boundary layers with an intermittency modelled transition region, has been developed and applied successfully to a range of test data.
283

The evaluation of canard couplings at high angles of attack

Ponton, Anthony J. C. January 1993 (has links)
No description available.
284

Rational function approximations to unsteady aerodynamics

Roberts, Richard Peter January 1996 (has links)
No description available.
285

The cause and cure of periodic flows at transonic speed

Gibb, J. January 1988 (has links)
No description available.
286

Trailing edge strips to reduce the drag of slender wings

Bruce, R. J. January 1988 (has links)
No description available.
287

Approximate methods for predicting the lifting characteristics of wing-body combinations

Hamwi, Sakher January 1989 (has links)
No description available.
288

A model for transition by attachment line contamination and an examination of cross-flow instability in three-dimensional boundary layers

Stewart, I. J. January 1987 (has links)
No description available.
289

An asymptotic approach for shock-wave/turbulent boundary layer interactions

Silva Freire, Atila P. January 1987 (has links)
No description available.
290

Hypersonic free-flight dynamic stability studies

Lewis, H. O. January 1996 (has links)
No description available.

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