Accession Number : AD0431277


Title :   A COMPARISON OF METHODS FOR COMPUTING THE VELOCITY DISTRIBUTION AND THE BOUNDARY LAYER ON BODIES OF REVOLUTION


Corporate Author : MISSISSIPPI STATE UNIV MISSISSIPPI STATE


Personal Author(s) : Yamaoka, Hideki


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/431277.pdf


Report Date : Nov 1963


Pagination or Media Count : 38


Abstract : This report represents an analytical and experimental study into the solution of flow around a body of revolution. The flow outside the boundary layer was assumed to be a perfect fluid and was explored by potential flow methods. The flow inside the boundary layer was explored by boundary layer methods admitting the predominance of viscosity. The potential flow methods include von Karman's method, used as a representative of the singularity distribution, and Kaplan's, which is regarded as being one of the more accurate methods. In connection with Kaplan's method, Young's method, which is a modification of Kaplan's method, is also discussed. In addition to these and for comparison, the two-dimensional case is also chosen. For ease of calculation, spheroids of various fineness ratios are used. Especial emphasis is put on the spheroid of fineness ratio 0.3 as the representative of the spheroid. A calculation method for both the laminar and turbulent flow, Truckenbrodt's method, is chosen as the representative method for calculation of the turbulent boundary layer. For comparison, other methods are given.


Descriptors :   *BOUNDARY LAYER , BODIES OF REVOLUTION , BOUNDARY VALUE PROBLEMS , FLUID FLOW , FLUID MECHANICS , LAMINAR BOUNDARY LAYER , LAMINAR FLOW , TURBULENCE , TURBULENT BOUNDARY LAYER , TWO DIMENSIONAL FLOW , VELOCITY


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE