Vortices and the related principles of hydrodynamics / by A. Betz.

Format:

Book

Government document

Author/Creator:

Betz, Albert, 1885-1965, author.

Contributor:

United States. National Advisory Committee for Aeronautics, issuing body.

Series:

Technical note (United States. National Advisory Committee for Aeronautics) ; 68.

Technical notes / National Advisory Committee for Aeronautics ; No. 68

Language:

English

Subjects (All):

Vortex-motion.

Fluid dynamics.

Hydrodynamics.

Eddies.

Physical Description:

1 online resource (22 pages, 4 unnumbered pages) : illustrations.

Place of Publication:

[Washington, D.C.] : National Advisory Committee for Aeronautics, 1921.

Summary:

Not long ago the term "vortices" signified that we had reached the limit of our knowledge with reference to the phenomena of moving fluids. "Vortices were formed" was the expresion and thereby the description of the process was simplified. Since Karman discovered behind obstructing bodies the system of vortices named for him and especially since well defined vortices have become the basis for accurate quantitative calculations, the conception of vortices has become a practical matter, although for many it is still a sort of magic word., incapable of actual demonstration. This widespread confusion concerning vortices is partly due to the fact that the word vortex is not always used with the same meaning, so that misunderstandings easily arise. In this treatise, the conceptions concerning vortices will be illustrated by the simplest possible examples. The phenomena will be demonstrated by means of simple geometrical and mechanical illustrations. For the sake of clearness, currents will be considered chiefly in one plane, which can be represented readily by diagrams.

Notes:

Title from title screen (viewed July 1, 2019).

"November, 1921."

"Translated from Zeitschrift fűr Flugtechnik und Motorluftschiffahrt, July 15, 1921."

"Translated by the National Advisory Committee for Aeronautics"--Page 22.

No Federal Depository Library Program (FDLP) item number.

Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.

Other Format:

Print version: Betz, Albert, Vortices and the related principles of hydrodynamics

OCLC:

1107323810