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Hydrodynamics Of Accumulators Of Compressed Air For An Uwcaes Plant, Ahmadreza Vaselbehagh
Hydrodynamics Of Accumulators Of Compressed Air For An Uwcaes Plant, Ahmadreza Vaselbehagh
Electronic Theses and Dissertations
The present document is a manuscript-based dissertation covering Ahmadreza Vasel-Be-Hagh's PhD research from September, 2011 to May, 2015. The research was particularly focused on studying hydrodynamics of underwater accumulators of compressed air for an underwater compressed air energy storage (UWCAES) plant. The accumulator units were floral configurations of droplet-shaped balloons installed close to the bed of deep water. The research was carried out in two major parts: water flow over the balloons and flow produced by the bursting of the balloons. In the first part, three-dimensional simulations were conducted to investigate water flow over accumulators. The simulation was carried out …
Cfd Simulation Of Impinging Jet Flows And Boiling Heat Transfer, Mehrdad Shademan
Cfd Simulation Of Impinging Jet Flows And Boiling Heat Transfer, Mehrdad Shademan
Electronic Theses and Dissertations
Circular jets impinging vertically on flat surfaces have many practical applications in industry. Nozzle height-to-diameter ratio plays an important role in the performance of this type of jet. In this thesis a step by step approach has been followed to cover different aspects of impinging jets. In the first step, a steady Reynolds-Averaged Navier-Stokes simulation has been carried out on impinging jets with different nozzle stand-off distances. A strong dependency of the jet characteristics on the nozzle height-to-diameter ratio was observed. The simulations show that an increase in this ratio results in larger shear stress and more distributed pressure on …