Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Supercavitation"”.
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Design and numerical analysis of an unconventional surface-piercing propeller for improved performance at low and high speeds
… propellers, operating under a similar concept as supercavitation, often achieve even greater efficiency by drawing in an air cavity from the free surface. Existing small craft have demonstrated the ability of such propellers to yield extremely high speeds (110+ knots); nevertheless, the full …
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Experimental investigation of cavitation in a cylindrical orifice
… nozzle exit. Transition from hydraulic flip to supercavitation was regularly observed for cavitation numbers below K=1.7. This unusual tendency was shown to be related to the vertical inclination of the nozzle allowing liquid to flow back down the nozzle under the action of gravity and thus …
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Characteristics of the High Speed Gas-Liquid Interface
The objective of this dissertation was to investigate physical characteristics of high speed gas-liquid interfaces for the cases of subsonic, transonic, and supersonic gas jets submerged underwater and the transient development of an underwater projectile reaching the supercavitating state. These …
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Numerical Simulations of Supercavitating Propellers and Hydrofoils
A systematic investigation is conducted to compare and evaluate the hydrodynamic performance and cavitation pattern prediction capabilities of URANS and BEM solvers for supercavitating propellers (SCPs) and hydrofoils (SCHs) with non-conventional sectional profiles. The previously developed BEM at …
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Development of the Distributed Points Method with Application to Cavitating Flow
A mesh-less method for solving incompressible, multi-phase flow problems has been developed and is discussed along with the presentation of benchmark results showing good agreement with theoretical and experimental results. Results of a systematic, parametric study of the single phase flow around a …