Thermal Impacts by Single and Multiple Cavitation Bubble Collapses under Various Thermodynamic Conditions
Abstract
Cavitation is usually known for its undesirable effects, especially the formation of erosion on the surface of marine and hydraulicsystem components as well as noise and vibrations. The thermal impacts on a target boundary induced by single and multiple cavitation bubble collapses remain almost unknown. In addition, in some applications, the system#s components often operate in a liquid at high temperatures. So far, no reliable experimental investigations exist that measure the temperature on a target boundary induced bysingle or multiple cavitation bubbles. Furthermore, most previous investigations focused on the study of a single bubble#s dynamicsin the free flow field or near a boundary only under one thermodynamic condition. Therefore, the aim of this project is to comprehensively perform experimental investigations to estimate the thermal impacts induced by single and multiple bubble collapses on different solid boundaries under various ambient temperature conditions. For thisaim, we will employ one direct method and one indirect method to measure the thermal effects on a target boundary at different ambient temperatures ranging between 10 °C and 90 °C at temperature intervals of 10 °C. Finally, the collapse-induced erosion on the solid boundary and the changes in the chemical composition of the structure after the bubble collapses will be measured. The results of the project will be published in highly ranked journals and provided for the research communities in the engineering, biochemical, and biomedical fields.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 10, 2025
- Source ID
- N629092512024
Entities
People
- Ould El Moctar
Organizations
- Office of Naval Research
- United States Navy