Measurements of Upstream History Effects in Compressible Turbulent Boundary Layers


Book Description

The report describes an experimental study of compressible turbulent boundary layers for which the upstream history was systematically varied. A series of experiments was conducted using both a supersonic half nozzle and a conventional flat plate for which the nozzle throat and flat plate leading edge can be temperature controlled. The supersonic nozzle provided a favorable upstream pressure gradient together with a controlled thermal history at the throat. The flat plate provided upstream temperature control with no pressure history. Velocity and temperature profile and heat-transfer measurements were made in a downstream region of zero-pressure-gradient and constant wall temperature. (Modified author abstract).




Analysis of Turbulent Boundary Layers


Book Description

Analysis of Turbulent Boundary Layers focuses on turbulent flows meeting the requirements for the boundary-layer or thin-shear-layer approximations. Its approach is devising relatively fundamental, and often subtle, empirical engineering correlations, which are then introduced into various forms of describing equations for final solution. After introducing the topic on turbulence, the book examines the conservation equations for compressible turbulent flows, boundary-layer equations, and general behavior of turbulent boundary layers. The latter chapters describe the CS method for calculating two-dimensional and axisymmetric laminar and turbulent boundary layers. This book will be useful to readers who have advanced knowledge in fluid mechanics, especially to engineers who study the important problems of design.







NASA Technical Note


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DTNSRDC.


Book Description




Aerothermodynamics of Aircraft Engine Components


Book Description

Annotation Design and R & D engineers and students will value the comprehensive, meticulous coverage in this volume. Beginning with the basic principles and concepts of aeropropulsion combustion, chapters explore specific processes, limitations, and analytical methods as they bear on component design.







Boundary Layer Effects in Turbomachines


Book Description

The report is a study organized by the AGARD Propulsion and Energetics Panel with the collaboration of the Fluid Dynamics Panel and contains the papers, discussions and conclusions from the culminating meeting held at ONERA, France, during April 1972. The study provided opportunities for fruitful exchanges between aerodynamicists and engine specialists concerned with turbomachines, from the major aeronautical nations within NATO. The study resulted in clarification of the current states of knowledge within the two specialities relevant to turbomachines and highlighted the interest and importance of past and current research, while the discussions indicated a number of avenues for further work. (Author).