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Fluid dynamics

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Analysis Of The Flow Through A Francis' Turbine Runner Using Computational Fluid Dynamics, William Anthony Jun 2008

Analysis Of The Flow Through A Francis' Turbine Runner Using Computational Fluid Dynamics, William Anthony

Archived Theses and Dissertations

This study investigates the fluid flow through the runner of an exceptionally low specific speed Francis’ turbine using computational fluid dynamics (CFD) to predict some performance characteristic of the runner, and to determine the effect of cavitation on the flow features within the turbine. It employs FLUENT CFD codes for the analysis. The study was carried out under steady conditions in two- dimensional analysis, primarily using the RNG k-ε turbulence model. It is mainly on single phase analysis; however a single case of two-phase cavitation modeling was performed in order to evaluate cavitation effects. The hydraulic losses were much dependent …