Abstract
This research is devoted towards numerical simulation of flow field around rectangular cylinder of varying side ratio (R). The Navier-Stokes Equations are solved in Large Eddy Simulation (LES) framework by using finite volume method. Two different properties of along wind turbulence are utilized under Reynolds number (Re=2.2 × 104). Authentication of similarity parameter, reduced turbulence intensity (Iru) is justified numerically. Wind tunnel time domain velocity data is incurred at the inlet of the domain to generate turbulent flow. Some mesh refinement works are also done. Mainly, time average value of drag force coefficient and base pressure coefficients are taken into consideration as a response of interest. The flow characteristics around the object are discussed in terms of mean value of pressure around the object, instantaneous pressure field and time averaged flow pattern around the object. Galloping characteristics are also investigated for square cylinder by utilizing quasi-steady theory.
