Accession Number : AD0749957

Title :   Measurements in the Field of Flow on Two Afterbody Models (Messungen im Stroemungsfeld on Zwel Hinterschiffsmodellen),

Corporate Author : DAVID TAYLOR MODEL BASIN WASHINGTON D C

Personal Author(s) : Wieghardt,K.

Report Date : APR 1959

Pagination or Media Count : 19

Abstract : Measurements in the field of flow around the afterbody carried out on two double models in a wind tunnel indicate that in the case of the extremely rounded form the flow proceeds in such fashion as was to be expected qualitatively. In the case of the model with rectangular frames, however, only in the vicinity of the bilge is the friction layer on the parallel middle body approximately the same as on the corresponding body of revolution while it is approximately four times as thick in the vicinity of the waterline or keel line. On the tapering afterbody, moreover, the transverse flow around the sharp bilge leads to the formation of strong longitudinal vortices in this case. (Author)

Descriptors :   (*SHIP HULLS, *HYDRODYNAMICS), AFTERBODIES, WIND TUNNEL MODELS, HYDRODYNAMIC CONFIGURATIONS, CURVED PROFILES, RECTANGULAR BODIES, TEST METHODS, INSTRUMENTATION, BOUNDARY LAYER, WEST GERMANY

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE