Accession Number : AD0752648

Title :   Die Umstromung Nichtrotationssymmetrischer Rumpfe in Unter- und Uberschall (The Flow Around Non-axially Symmetric Bodies in Subsonic and Supersonic Flow),

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V AACHEN (WEST GERMANY)

Personal Author(s) : Rothmann,Hermann

Report Date : 25 MAY 1970

Pagination or Media Count : 10

Abstract : The paper presents a method for calculating the flow about non-axial symmetric bodies in subsonic and supersonic flow. The bodies are constructed by means of the streamlines on their surface. Source, dipole and quadrupole singularities are assumed on a curved camberline; the differential equations for the streamlines are derived and numerically integrated. At the tip of the body, which is the initial point of the integration as well as a singular point of the differential equations, the problem can be solved by a transformation to 'conical' coordinates. Different cross-sections and longitudinal sections of the body can be produced by varying the source, dipole and quadrupole strengths as well as the 'camber' of the cambeline. This method seems to be particularly suitable in cases in which the streamlines are of interest. Using this method, the pressure distribution and the air forces on bodies can be determined. (Author)

Descriptors :   (*AERODYNAMICS, THEORY), FLOW FIELDS, SUBSONIC CHARACTERISTICS, SUPERSONIC CHARACTERISTICS, EQUATIONS OF MOTION, MATHEMATICAL MODELS, PRESSURE, FORCE(MECHANICS)

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE