Behavior of Turbulent Boundary Layers on Curved Convex Walls

Behavior of Turbulent Boundary Layers on Curved Convex Walls
Author: Hans Schmidbauer
Publisher:
Total Pages: 570
Release: 1936
Genre: Mathematics
ISBN:

The system of linear differential equations which indicated the approach of separation and the so-called "boundary-layer thickness" by Gruschwitz is extended in this report to include the case where the friction layer is subject to centrifugal forces. Evaluation of the data yields a strong functional dependence of the momentum change and wall drag on the boundary-layer thickness radius of curvature ratio for the wall. It is further shown that the transition from laminar to turbulent flow occurs at somewhat higher Reynolds Numbers at the convex wall than at the flat plate, due to the stabilizing effect of the centrifugal forces.

Technical Note

Technical Note
Author: United States. National Advisory Committee for Aeronautics
Publisher:
Total Pages: 446
Release: 1947
Genre: Aeronautics
ISBN:

The 1350 Degree Stress-rupture Properties of Two Wrought Alloys and Three Cast Alloys

The 1350 Degree Stress-rupture Properties of Two Wrought Alloys and Three Cast Alloys
Author: E. E. Reynolds
Publisher:
Total Pages: 510
Release: 1947
Genre: Alloys
ISBN:

The rupture-test characteristics at 1350 degrees F of two wrought alloys in the solution-treated and aged condition, NR-82 (6059 modified-low carbon) and NR-84 (N-155 modified-low carbon), and three precision-cast alloys in aged condition, NR-71 (X-40), NR-87 (Co-Cr-Ni base-9Mo) and NR-90 (Co-Cr-Ni base-5Mo, 5W) are reported. The properties are shown to compare favorably with those of the strongeest similar alloys previously investigated. A correlation of NACA and OSRD data is presented, showing the variation of ruture strengths with temperature for the alloys between 1350 degrees and 2000 degrees F.

Technical Memorandums

Technical Memorandums
Author: United States. National Advisory Committee for Aeronautics
Publisher:
Total Pages: 378
Release: 1936
Genre: Aeronautics
ISBN:

Chiefly translations from foreign aeronautical journals.

Introduction to the Theory of Flow Machines

Introduction to the Theory of Flow Machines
Author: Albert Betz
Publisher: Elsevier
Total Pages: 300
Release: 2014-05-16
Genre: Technology & Engineering
ISBN: 1483180905

Introduction to the Theory of Flow Machines details the fundamental processes and the relations that have a significant influence in the operating mechanism of flow machines. The book first covers the general consideration in flow machines, such as pressure, stress, and cavitation. In the second chapter, the text deals with ducts; this chapter discusses the general remarks, types of flow, and mixing process. Next, the book tackles the types of cascades, along with its concerns. The closing chapter covers the flow machine and its components, such as turbine, wheels, engines, and propellers. The text will be of great use to mechanical engineers and technicians.

Fluid Mechanics Measurements

Fluid Mechanics Measurements
Author: R. Goldstein
Publisher: Routledge
Total Pages: 740
Release: 2017-11-13
Genre: Technology & Engineering
ISBN: 1351447823

This revised edition provides updated fluid mechanics measurement techniques as well as a comprehensive review of flow properties required for research, development, and application. Fluid-mechanics measurements in wind tunnel studies, aeroacoustics, and turbulent mixing layers, the theory of fluid mechanics, the application of the laws of fluid mechanics to measurement techniques, techniques of thermal anemometry, laser velocimetry, volume flow measurement techniques, and fluid mechanics measurement in non-Newtonian fluids, and various other techniques are discussed.

Paper

Paper
Author:
Publisher:
Total Pages: 648
Release: 1996
Genre: Mechanical engineering
ISBN: