Accession Number : AD0430928


Title :   A LIFTING-SURFACE PROPELLER DESIGN METHOD FOR HIGH-SPEED COMPUTERS


Descriptive Note : Technical publication


Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CA


Personal Author(s) : Nelson, D M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/430928.pdf


Report Date : Jan 1964


Pagination or Media Count : 61


Abstract : A propeller design method that treats the blades as lifting surfaces has been developed and programmed on an IBM 7090 computer. The singularity distributions representing the bound circulation, shed vorticity, and blade thickness are treated as continuous sheets, making it necessary to determine the Cauchy principal value of the improper integrals expressing the induced velocities on the blades. The camber lines and pitch angles are determined from the variation of the normal component of induced velocity across the blade. This method is applicable to moderately loaded, non-optimum, wake-adapted propellers with or without skew.


Descriptors :   *MARINE PROPELLERS , THICKNESS , PITCH(MOTION) , COMPUTER PROGRAMMING , VORTICES , MATHEMATICAL ANALYSIS , HYDRODYNAMIC CONFIGURATIONS , HYDRODYNAMICS , DIGITAL COMPUTERS , TORPEDO COMPONENTS , PROPELLER BLADES , DATA PROCESSING , LIFT


Subject Categories : Marine Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE