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Showing 1 to 5 of 5 for “"bluff body wakes"”.
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Large eddy simulations of bluff-body wakes on parallel computers
… to predict the characteristics of turbulent wakes of bluff bodies. The problem considered concerns turbulent flow over a square cylinder placed normal to a uniform free stream. The Reynolds number selected for the simulations is 21,400 where detailed experimental data are available. The …
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Study of flow past elliptic and circular cylinders using direct numerical simulation
… considered prototypical of flow over a range of bluff bodies since the geometry allows one to study the effect of both thickness and angle-of-attack on the flow field. Therefore a careful study of this flow should provide valuable insight into the phenomenon of unsteady separation and the …
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Parallel Simulations, Reduced-Order Modeling, and Feedback Control of Vortex Shedding using Fluidic Actuators
… phenomenon of vortex shedding observed in many bluff body wakes. We develop a parallel computational fluid dynamics (CFD) code to solve the incompressible Navier-Stokes equations on curvilinear coordinates to analyze vortex shedding. The algorithm is implemented on a distributed-memory, …
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Fully Turbulent Wakes at Low Reynolds Numbers: the Case of the Thin Flat Plate
… tran-sition process to turbulence than wakes behind canonical geometries. Moreover, there is vast disagreement over the behaviour of the wake among numerical simulations below Reynolds number 1000. This thesis provides evidence that the wake is fully turbulent at Reynolds number 400. We …
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An Experimental Spatio-Temporal Analysis of Separated Flows Over Bluff Bodies Using Quantitative Flow Visualization
… unsteady turbulent flow fields such as the wakes of bluff bodies, a Digital Particle Image Velocimetry (DPIV) system was developed. This system allows non-intrusive two-dimensional and time varying velocity measurements. Software and hardware modifications necessary to enhance the …