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The Interaction Between Cavitation and Wear in Enclosed Spaces with Oscillating Boundaries

Abstract Details

2019, Master of Science, Miami University, Mechanical and Manufacturing Engineering.
Cavitation in fluids is caused by large pressure differences within a flow. In fluid flow, cavitation bubbles can nucleate, grow, convect, and collapse. Collapse of cavitation bubbles creates high-pressure impulses which can cause damage to nearby solid surfaces. When bubble collapse is repeated over time, material is lost from the surface, and this is termed cavitation erosion. Cavitation erosion can damage hydraulic machinery, boat propellers, and other equipment operated in various fluids. The goal of this study was to create a simulation of cavitation erosion induced by oscillations in an enclosed space with changing flow field boundaries from eroded surfaces. Frequency and amplitude of oscillation and the geometry of the fluid space were varied in the simulations to test their effect on cavitation erosion. The simulation results were compared to experiments created to test the cavitation erosion of 304 stainless steel with deionized water. The enclosed space causes cavitation erosion to be found on the piston side in addition to the piston face. The effect of eroding boundaries in the flow field may provide further insight into the process of cavitation erosion.
James Moller, Ph. D (Advisor)
Muhammad Jahan, Ph. D (Advisor)
Andrew Sommers, Ph. D (Committee Member)
94 p.

Recommended Citations

Citations

  • Whaley, E. L. (2019). The Interaction Between Cavitation and Wear in Enclosed Spaces with Oscillating Boundaries [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1558435589443526

    APA Style (7th edition)

  • Whaley, Erica. The Interaction Between Cavitation and Wear in Enclosed Spaces with Oscillating Boundaries. 2019. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1558435589443526.

    MLA Style (8th edition)

  • Whaley, Erica. "The Interaction Between Cavitation and Wear in Enclosed Spaces with Oscillating Boundaries." Master's thesis, Miami University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1558435589443526

    Chicago Manual of Style (17th edition)