The Existence of Three-dimensional Perturbations in the Reattachment of a Two-dimensional Supersonic Boundary Layer After Separation

The Existence of Three-dimensional Perturbations in the Reattachment of a Two-dimensional Supersonic Boundary Layer After Separation
Author: Jean J. Ginoux
Publisher:
Total Pages: 18
Release: 1960
Genre: Aerodynamics, Supersonic
ISBN:

The reattachment region of a laminar boundary layer after separation has been investigated at a Mach number of 2.16. Two-dimensional compression corners and backward or forward facing step models were used. The case of interaction between a shock wave and a laminar boundary layer was also considered. Surface flow was observed by a sublimation technique and detailed span-wise surveys were made in the reattachment region of the flow with total-head probes. Strong, regular and repeatable span-wise perturbations were observed in the boundary layer; these could not be explained by irregularities either in the air flow upstream of the models or in the models themselves. It was found in all cases that street-like flow perturbations existedup to the point where transition occurred. A systematic investigation was made on backward facing steps in order to find out the effects of step height and boundary-layer thickness on the wave length of the flow perturbations. (Author).

AFOSR.

AFOSR.
Author: United States. Air Force. Office of Scientific Research
Publisher:
Total Pages: 940
Release: 1960
Genre: Research
ISBN:

Symposia

Symposia
Author: Defense Documentation Center (U.S.)
Publisher:
Total Pages: 290
Release: 1963
Genre: Congresses and conventions
ISBN:

Separation of Flow

Separation of Flow
Author: Paul K. Chang
Publisher: Elsevier
Total Pages: 800
Release: 2014-06-28
Genre: Technology & Engineering
ISBN: 1483181286

Interdisciplinary and Advanced Topics in Science and Engineering, Volume 3: Separation of Flow presents the problem of the separation of fluid flow. This book provides information covering the fields of basic physical processes, analyses, and experiments concerning flow separation. Organized into 12 chapters, this volume begins with an overview of the flow separation on the body surface as discusses in various classical examples. This text then examines the analytical and experimental results of the laminar boundary layer of steady, two-dimensional flows in the subsonic speed range. Other chapters consider the study of flow separation on the two-dimensional body, flow separation on three-dimensional body shape and particularly on bodies of revolution. This book discusses as well the analytical solutions of the unsteady flow separation. The final chapter deals with the purpose of separation flow control to raise efficiency or to enhance the performance of vehicles and fluid machineries involving various engineering applications. This book is a valuable resource for engineers.

Report

Report
Author:
Publisher:
Total Pages: 540
Release: 1960
Genre: Aeronautics
ISBN: