Development of the inflow theory of the propeller / 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) ; 24.

Technical notes / National Advisory Committee for Aeronautics ; No. 24

Language:

English

Subjects (All):

Air flow--Mathematical models.

Air flow.

Propellers, Aerial.

Physical Description:

1 online resource (4 pages, 2 unnumbered pages) : illustrations.

Place of Publication:

[Washington, D.C.] : National Advisory Committee for Aeronautics, 1920.

Summary:

We know that the theory of inflow of the propeller assumes that a space limited by two concentric cylinders having as axis the axis of the propeller, the axial and tangential velocity of the air is constant. If we consider only the suctional axial velocity of the air, it can easily be shown that maximum efficiency is obtained on condition of having constant speed along the radius of the propeller. But it is not so if the suctional tangential velocity is introduced.

Notes:

Title from title screen (viewed June 20, 2019).

"November, 1920."

"Resumé translated from the German by Paris Office, N.A.C.A."

"Zeitschrift für Flugtechnik und Motorluftschiffahrt" [Journal of aviation engineering and motorized-airship aeronautics]--Page 1.

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 Development of the inflow theory of the propeller

OCLC:

1105632408