
Accession Number : AD0726366
Title : Two Approaches to the ThreeDimensional JetInCross Wind Problem: A Vortex Lattice Model and a Numerical Solution of the NavierStokes Equations.
Descriptive Note : Doctoral thesis,
Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING
Personal Author(s) : Thompson,Joe Floyd , Jr
Report Date : JUN 1971
Pagination or Media Count : 548
Abstract : A threedimensional numerical solution of the timedependent, incompressible NavierStokes equations based on an integrodifferential formulation of these equations is developed. With this formulation it is possible to obtain the complete solution in the entire flow field while restricting the actual computational field to the region of significant vorticity magnitude of each time. This allows a considerable reduction in the computer storage required, since only the field points having significant vorticity at any time need be stored at that time, and calculations are actually performed only at those points at that time. The validity of the numerical solution is established by comparison of the results with the exact solution for the timedependent, onedimensional flow over a suddenly accelerated infinite flat plate moving parallel to itself at constant velocity, and by comparison of surface pressure and drag coefficients with experimental results, and with the results of other numerical solutions for the twodimensional flow about a circular cylinder. The numerical solution is applied to the flow field of an infinite jet in a crossflow and to the flow field of a jet issuing perpendicularly from an infinite plane wall into a crossflow parallel to the wall. (Author)
Descriptors : (*JET MIXING FLOW, NUMERICAL ANALYSIS), (*NAVIER STOKES EQUATIONS, INCOMPRESSIBLE FLOW), VORTICES, EQUATIONS OF MOTION, REYNOLDS NUMBER, NUMERICAL METHODS AND PROCEDURES, COMPUTER PROGRAMMING, DATA PROCESSING, FLOW FIELDS, THREE DIMENSIONAL FLOW, CORRELATION TECHNIQUES, AERODYNAMIC CONFIGURATIONS, THESES
Subject Categories : Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE