
Accession Number : ADA130194
Title : Computation of ThreeDimensional Flows in Ducts of Varying Cross Sections.
Descriptive Note : Summary rept. no. 1, 15 Jun 8115 Jan 83,
Corporate Author : MINNESOTA UNIV MINNEAPOLIS DEPT OF MECHANICAL ENGINEERING
Personal Author(s) : Patankar,Suhas V
PDF Url : ADA130194
Report Date : May 1983
Pagination or Media Count : 72
Abstract : A calculation procedure is developed for the threedimensional flow in ducts of varying cross section. The procedure is of the fully parabolic variety; i.e., the solution for the whole duct is obtained by a marching scheme that proceeds from the upstream end to the downstream region solving the flow over one cross section at each marching step. The procedure for each cross section is based on the finite element method of Baliga and Patankar. The report describes a major improvement incorporated in the method and some examples of the use of the method. The adaptation of the method for a marching procedure for duct flows is also described. Among the examples presented as test problems are the developing flows: in a square duct, over a rod bundle, in a square diffuser, and in an elliptic duct of varying crosssectional shape. All numerical solutions are shown to be in satisfactory agreement with exact solutions and/or other available solutions and experimental data. (Author)
Descriptors : *Numerical methods and procedures, *Computations, *Three dimensional flow, *Ducts, Cross sections, Variations, Fluid flow, Problem solving, Finite element analysis, Mathematical prediction, Two dimensional flow, Differential equations, Shape, Bundles, Rods, Diffusers
Subject Categories : Numerical Mathematics
Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE