Computation of fluid flow with multi-grid and multi-block algorithms

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Title: Computation of fluid flow with multi-grid and multi-block algorithms
Author: Mendu, L.N.
Abstract: Computational Fluid Dynamics (CFD ) has wide applications in areas such as aerospace , automobile and materials manufacturing industries . The development of CFD procedures has progressed extremely rapidly during the past two decades . However , the real world processes are usually too large and too complicated to simulate due to the computing and memory limits . The problems that are facing the computational fluid dynamicist can be briefly summarized as discretization and variable storing strategies , convergence acceleration of solution procedure , handling of complex geometries and turbulence modeling . In the present study , an effort is made to develop solution procedures to tackle the above mentioned problems . The evaluation of the pressure field has always been the difficult issue in the primitive variable approach . To eliminate a wavy pressure field , the staggered grid approach was developed by Harlow and Welch (1965 ) , but implementation of the staggered grid for a three -dimensional , curvilinear coordinate system is complicated and tiresome . In the present study , the results and convergence histories with using a solution procedure based on non -staggered grid system are reported and compared with that of staggered grid system . After comparing the flow field and convergence histories , the present non -staggered grid formulation proved as a potential alternative to staggered grid formulation . There has never been any pressure oscillation in this practice .
URI: http : / /hdl .handle .net /2346 /9621
Date: 1959-08


Mendu, L.N. Computation of fluid flow with multi-grid and multi-block algorithms. Doctoral dissertation, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /9621 .

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