Time-Resolved Tomographic Particle Imaging Velocimetry System for the Examination of Cavitation Inception
Abstract
Cavitation inception is an important flow process that occurs on Naval platforms that can lead tounwanted noise and loss of performance. Our ability to predict and scale cavitation inception forflows of Naval interest is still limited, and several fundamental and applied questions aboutcavitation inception have not been resolved in spite of this considerable efforts over many years.Recent advances in time-resolved, volumetric Particle Imaging Velocimetry can allow us tomeasure the underlying of the flow and pressure fields associated with the inception of cavitationnuclei. The motion of these seed particles in a fluid volume will be recorded with four camerasat a rate of up to 10,000 frames per second. Their motion and that of the surrounding flow willbe analyzed to determine the flow field around cavitation nuclei as they grow to create cavitatingbubbles, including the local flow velocity, acceleration, and resulting pressure. This, in turn canbe used to understand how the bubbles gorw and how they make their distinctive noise emission.The system proposed is from LaVision Inc., and it will be used to collect validation quality datafor validation of computational flow models. Also, it will allow us to train our graduate studentsand post-doctoral fellow on this state-of-the art flow diagnostic.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 03, 2017
- Source ID
- N000141712277
Entities
People
- Steven Ceccio
Organizations
- Board of Regents of the University of Michigan
- Office of Naval Research
- United States Navy