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A comparative study between optimal metal and composite rotors for flywheel energy storage systems
Download2018-11-01
Most recent research on flywheel rotors has focused on high-speed composite rotors as the storage element of the flywheel energy storage system (FESS). Literature research indicates that this is primarily due to the high specific energy of composites compared to metals. However, a quantitative...
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A Compressible Fluid Flow Model Coupling Channel and Porous Media Flows and Its Application to Fuel Cell Materials
Download2020-01-01
Jarauta, A., Zingan, V., Minev, P., Secanell, M.
A multi-dimensional, compressible fluid flow solver, valid in both channel and porous media, is derived by volume-averaging the Navier-Stokes equations. By selecting an appropriate average density/velocity pair, a continuous, stable solution is obtained for both pressure and velocity. The...
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2020-01-01
Mahrous, E., Jarauta, A., Chan, T., Ryzhakov, P., Weber, A.Z., Roy, R.V., Secanell, M.
A particle finite element method (PFEM) based model is proposed to analyze droplet dynamics problems, particularly droplet spreading on solid substrates (wetting). The model uses an updated Lagrangian framework to formulate the governing equations of the liquid. Curvature of the liquid surface is...
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2018-01-01
Jarauta, A., Ryzhakov, P., Pons-Prats, J., Secanell, M.
A Lagrangian incompressible fluid flow model is extended by including an implicit surface tension term in order to analyze droplet dynamics. The Lagrangian framework is adopted to model the fluid and track its boundary, and the implicit surface tension term is used to introduce the appropriate...