Development of a Finite Volume Algorithm for Calculation of Three Dimensional Incompressible Turbulent Recirculating Flows.

Majumdar, Sekhar and Sinha, UN Development of a Finite Volume Algorithm for Calculation of Three Dimensional Incompressible Turbulent Recirculating Flows. Project Report. NAL, Bangalore.

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Abstract

This project aims at developing a general purpose, user-friendly computer code for numerical prediction of three-dimensional turbulent separated flows solving the time-averaged, incompressible Navier Stokes equations in bodyfitted nonorthogonal coordinate systems . ,A finite volume method is developed which employs the concept of the Semi Implicit Pressure Linked Equations (SIMPLE) of Patankar & Spalding (1J, revised for cell-centred variable arrangement and 'using' Cartesian velocity components as dependent variables . Two equations (K- E) models of turbulence [21 will be used to simulate the effect of turbulence on time-averaged flow properties . The data structure and the program are so organised that the code, when run on a Vector m/c, may also exploit the hardware -architecture of a Vector processor and consequently the computation is' accelerated . Finally, in order to meet the large Computer-Storage and CPU demand for real-life problems ; a parallelised version of the code will be generated, compatiable to the . in-house MK-II FLOSOLVER at NAL for which also the computer resources and hardware need to be augmented.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Separated Flow;Turbulence Model;Body-Coordinates;Three Dimensional Flows;Irregular Flow Boundaries;Parallel Computers
Subjects: AERONAUTICS > Aerodynamics
MATHEMATICAL AND COMPUTER SCIENCES > Numerical Analysis
Depositing User: Mr Nisanth
Date Deposited: 30 Jul 2012 07:56
Last Modified: 17 Aug 2015 09:37
URI: http://nal-ir.nal.res.in/id/eprint/10666

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