Accession Number : AD0857010

Title :   Review of Wave Drag Theories.

Descriptive Note : Technical memo.,

Corporate Author : HYDROFOIL CORP ANNAPOLIS MD

Personal Author(s) : Vavra, M. H.

Report Date : 20 MAY 1951

Pagination or Media Count : 19

Abstract : The review compares the results of wave drag theories obtained by different sources. All these theories are linearized. This limits their application to small wave heights compared with the wave lengths. In channels of finite depths the theories give abrupt changes in performance at the critical channel speed. A method is explained that makes possible the determination of the bound vortex drag from measurements of the lift-curve slopes. (Author)

Descriptors :   *HYDROFOILS, *OCEAN WAVES, DRAG, LAMINAR FLOW, TWO DIMENSIONAL FLOW, LIFT, THEORY, DOWNWASH, VORTICES.

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE