Measurement of Velocity and Dissolved Gas Concentration in Laser Bubbles
Abstract
In naval hydrodynamic, non-condensable gases are typically dissolved in water; this affects cavitation inception compared to pure wa,ter. While models have been developed to capture the effect of non-condensable gases on cavitation, they are still empirical in natu,re. Recently, Dr. Gomez at Purdue University has developed a model based on Gibbs free-energy that takes into account mass transfer,during phase change. While the model has very little empiricism, there are still parameters that need to be calibrated through detai,led experimental campaign. Specifically, we will use a small scale experimental facility and laser diagnostic to capture mass transf,er during laser cavitation with planar laser induced fluorescence to measure concentration of dissolved oxygen and molecular tagging, velocimetry to measure liquid velocity as well as the bubble interface. This data will enable to validate the model parameters of D,r. Gomez. This effort is complimentary to a recent DEPSCoR funding to Dr. Gomez on which Dr. Bardet is a co-PI.Approved for Public R,elease
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 03, 2022
- Source ID
- N000142212641
Entities
People
- Philippe Bardet
Organizations
- George Washington University
- Office of Naval Research
- United States Navy