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Background And Available Potential Energy In Numerical Simulations Of A Boussinesq Fluid, Shreyas S. Panse
Background And Available Potential Energy In Numerical Simulations Of A Boussinesq Fluid, Shreyas S. Panse
Masters Theses 1911 - February 2014
In flows with stable density stratification, a portion of the gravitational potential energy is available for conversion to kinetic energy. The remainder is not and is called “background potential energy”. The partition of potential energy is analogous to the classical division of energy due to motion into its kinetic and internal components. Computing background and available potential energies is important for understanding stratified flows. In many numerical simulations, though, the Boussinesq approximations to the Navier-Stokes equations are employed. These approximations are not consistent with conservation of energy. In this thesis we re-derive the governing equations for a buoyancy driven fluid …
Simulations Of Flow Over Wind Turbines, Dnyanesh A. Digraskar
Simulations Of Flow Over Wind Turbines, Dnyanesh A. Digraskar
Masters Theses 1911 - February 2014
One of the most abundant sources of renewable energy is wind. Today, a considerable amount of resources are being utilized for research on harnessing the wind energy efficiently. Out of all the factors responsible for efficient energy production, the aerodynamics of flow around the wind turbine blades play an important role. This work aims to undertake aerodynamic analysis of a Horizontal Axis Wind Turbine. A steady state, incompressible flow solver for multiple reference frames, MRFSimple- Foam is modified and used for performing simulations of flow over National Renewable Energy Laboratory Phase VI wind turbine rotor. The code is first tested …