Solution of three-dimensional incompressible navier-stokes13; equations on FLOSOLVER

Deshpande, MD and Murugan, M and Sinha, UN (1993) Solution of three-dimensional incompressible navier-stokes13; equations on FLOSOLVER. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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Abstract

Flow in a three-dimensional cavity where a lid drives the fluid by moving tangentially is studied numerically by solving the Navier-Stokes equations. The details of parallelising the computer programme are given in this report. The incompressible flow equations are solved by a Marker and a Cell (MAC) method using the Euler explicit scheme for time marching. The convective term is approximated by a third order upwind scheme which needs a five point stencil. Poisson equation for pressure13; is solved iteratively. The method of domain decomposition is used to implement the programme on the Flosolver parallel computer. The pipelining concept is used for pressure iterations to retain the features of sequential algorithm. Unsolicited data transfer is employed during pressure iteration since the data volume to be transferred is small. Load balancing is done to improve the efficiency. Several tests are done to get an idea about the time spent.for various computational activities.

Item Type:	Monograph (Technical Report)
Uncontrolled Keywords:	Driven cavity;Navier-stokes equations;Parallel computing;Domain decomposition;Load balancing
Subjects:	ENGINEERING > Fluid Mechanics and Thermodynamics MATHEMATICAL AND COMPUTER SCIENCES > Computer Programming and Software
Depositing User:	Mrs Neetu Chandra
Date Deposited:	11 Jul 2006
Last Modified:	24 May 2010 04:13
URI:	http://nal-ir.nal.res.in/id/eprint/1648

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