
Accession Number : AD0726447
Title : The Flow about a Circular Cylinder at Low Reynolds Numbers Using the Method of Series Truncation with a Novel Coordinate System.
Descriptive Note : Technical rept.,
Corporate Author : CALIFORNIA UNIV BERKELEY DIV OF AERONAUTICAL SCIENCES
Personal Author(s) : Berger,S. A. ; Cheung,YK ; Raghuraman,P.
Report Date : APR 1971
Pagination or Media Count : 32
Abstract : Arguments are presented suggesting that choosing as one of the coordinates, the parabolas along which vorticity decay algebraically far from any finite, twodimensional body, one may anticipate better results in applying the method of series truncation to flow about such a body. As a test, the steady, incompressible, low Reynolds flow about a circular cylinder is analyzed starting with the NavierStokes equations. The results obtained for the first truncation are closer to the exact Oseen solution than first and second truncations obtained using the more usual polar coordinates. (Author)
Descriptors : (*CYLINDRICAL BODIES, FLOW FIELDS), (*FLUID FLOW, MATHEMATICAL ANALYSIS), REYNOLDS NUMBER, SERIES(MATHEMATICS), NAVIER STOKES EQUATIONS, VORTICES, INCOMPRESSIBLE FLOW, APPROXIMATION(MATHEMATICS)
Subject Categories : Numerical Mathematics
Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE