Some Characteristics of Turbulent Boundary Layers in Rapidly Accelerated Flows
Some Characteristics of Turbulent Boundary Layers in Rapidly Accelerated Flows

Author: Paul F. Brinich

Publisher:

Published: 1971

Total Pages: 36

ISBN-13:

DOWNLOAD EBOOK

An analysis of time-mean-turbulent boundary layer velocity profiles measured in a rapidly accelerating flow suggests that the outer region of the velocity profiles consists of essentially inviscid, rotational flow. The extent of this inviscid outer region was observed in some cases to exceed 90 percent of what is ordinarily thought of as the turbulent boundary layer thickness. On the other hand, the inner frictional region of these velocity profiles appears to have turbulent characteristics similar to those of more conventional turbulent boundary layers. Hence, the outer edge boundary condition for this inner region is more properly the external rotational flow region than the free stream.

Boundary-Layer Theory
Boundary-Layer Theory

Author: Hermann Schlichting (Deceased)

Publisher: Springer

Published: 2016-10-04

Total Pages: 814

ISBN-13: 366252919X

DOWNLOAD EBOOK

This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.

THE WALL-JET IN A MOVING STREAM.
THE WALL-JET IN A MOVING STREAM.

Author: V. Kruka

Publisher:

Published: 1963

Total Pages: 1

ISBN-13:

DOWNLOAD EBOOK

The wall-jet is the flow of fluid emanating from a narrow slot and blowing over a rigid wall. The width of the slot is of the order of the boundary layer on the infinite wall and the jet, in this case, mixes with a stream moving with constant velocity. This flow has drawn considerable basic and applied interest in the past few years for it has the characteristics of both a boundary layer and a free mixing flow. The present experimental investigation of a plane, steady, turbulent wall-jet with negligible longitudinal pressure gradients in a constant moving stream, with varying ratios of jet to free stream velocity definitely supports Glauert's reasoning (The Wall-Jet. J. Fluid Mech., v.1, part 6, 1956), though the precise point of partition of the flow might be in question. The inner layer is constantly losing momentum due to the frictional stresses at the wall, while the outer layer preserves its momentum; the division now occurring at the point of zero shear which is not at the maximum velocity. The analysis and experimental results are compared with those of previous investigators and a definite comparison of this work with those performed in a quiescent free stream is achieved through transformation of coordinates. (Author).

Self-sustaining Mechanisms of Wall Turbulence
Self-sustaining Mechanisms of Wall Turbulence

Author: Ronald Lee Panton

Publisher: Computational Mechanics

Published: 1997

Total Pages: 448

ISBN-13:

DOWNLOAD EBOOK

Why is wall turbulence self-sustaining? In this book well-regarded researchers not only discuss what they know and believe, but also speculate on ideas that still require numerical or experimental testing and verification. An initial brief history of boundary layer structure research is followed by chapters on experimental information and specific topics within the subject. There are then sections on computational aspects.