Faculty Publications

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Author: search.filters.author.Majumdar, S.Subject: search.filters.subject.Implicit finite volume solver

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    LES of flow over a circular cylinder at high Reynolds number
    (Indian Institute of Technology, IIT, Kanpur, 2011) Rajani, B.N.; Kandasamy, A.; Majumdar, S.
    Turbulent flow past a circular cylinder at Re = 1.4 × 105 has been analysed using Large Eddy Simulation (LES) approach solving filtered unsteady 3D NS equations coupled to Smagorinsky and dynamic subgrid scale (SGS) models. These simulations have been carried out using a parallel multiblock structured code which employs an implicit second-order accurate pressure-based finite volume method for solving Navier-Stokes equations for unsteady turbulent incompressible flow situations. The predictions are validated against detailed measurement data for mean as well as turbulence quantities. © IUTAM Symposium on Bluff Body Flows, Blubof 2011.
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    LES of flow past circular cylinder at Re = 3900
    (Isfahan University of Technology secretary@jafmonline.net, 2016) Rajani, B.N.; Kandasamy, A.; Majumdar, S.
    Transitional flow past a circular cylinder in the lower subcritical regime (Re = 3900) has been analysed using Large Eddy Simulation (LES) coupled to Smagorinsky and dynamic sub grid scale models. These simulations have been carried out using a parallel multiblock structured finite volume code which is based on SIMPLE algorithm. The predictions are validated against detailed measurement data for mean as well as turbulence quantities. The present LES prediction in general agree reasonably well with the measurement data in the near wake region but deviates from the measurement data in the far wake region which may be due to the coarse resolution of the grid in this region. The influence of the SGS model on mean flow quantities as well as on the flow structures are also discussed.