| || Numerical Simulation of Incompressible Turbulent Flow using Linear Eddy Viscosity-based Turbulence Models
Author : Majumdar, Sekhar;Rajani, B.N.;Kulkarni, D.S.;Subrahmanya, M.B.
Source : Defence Science Journal ; Vol:60(6) ; 2010 ; pp 614-627
Subject : 532.542 Fluid Dynamics;Defence Science Journal
Keywords : Computational Fluid Dynamics;Eddy viscosity-based turbulence models;Multi-block boundary-conforming grid
Abstract : The present study focuses on the recent development of an implicit pressure-based finite volume algorithm for numerical solution of Reynolds averaged Navier-Stokes equations (RANS) in an inertial frame of reference for the prediction of unsteady incompressible flow problems. The algorithm uses boundary-conforming, multiblock structured grid with moving boundaries, collocated variable arrangement with momentum equations resolved along cartesian directions, second-order accurate spatial and temporal discretisation schemes for the convective fluxes and a pressure-velocity solution strategy. Effect of turbulence was simulated using appropriate linear eddy viscosity-based turbulence models. The capabilities and limitations of the cost-effective unsteady Reynolds averaged Navier-Stokes (URANS) approach has been demonstrated for few application problems of engineering interest.