Accession Number:

AD0492093

Title:

ON TWO THEORIES OF PLANE POTENTIAL FLOWS WITH FINITE CAVITIES

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1946-08-29

Pagination or Media Count:

18.0

Abstract:

Two moddls of bonded discontinuous plane potential flows, or cavities, are presented and discussed. The first, satisfies all the mathematical conditions on a flow with free boundaries and non-zero cavitation number. The free streamlines in this model reverse direction at the rear of the cavity to form a jet extending theoretically through the obstacle to infinity. The second theory artificially introduces another obstacle which closes the cavity at its rear. The mathematical solutions to the problem of flow about a flat plate are presented for both models, and calculations, including drag coefficient numbers, N, between 0 and 1.3. Both theories are found to give essentially the same results over this entire range.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE