Air entrainment in turbulent free surface boundary layer
Abstract
High Reynolds number and multiphase flows associated with ship motion create unique challenges thatare specific to Naval Ships. The source of turbulent air entrainment in ship wakes is of particular interestto the US Navy to develop mitigation strategies in orde"r to minimize signature of ships wake. In additionto being multiphase, air entrainment from strong turbulence is multiscale. Signif""icant efforts have beendeployed in understanding breaking waves, but the microphysics of entrainment from turbulence is lessunders""tood. To uncover the underlying processes governing these last flows, it is necessary to use acombination of high-fidelity simulati"ons and dedicated experiments and instruments. Experimental dataserve also to validate and calibrate numerical models. To accomplis"h these two goals, we are proposingto develop a new experimental facility based on evolution of the current one and to implement st"ate of theart laser diagnostics. The facility and instrument will allow probing with unprecedented spatio-temporalresolution the micro-scale effects of turbulence on air entrainment and advancing computational fluiddynamics validation methodologies.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 09, 2017
- Source ID
- N000141712616
Entities
People
- Philippe Bardet
Organizations
- George Washington University
- Office of Naval Research
- United States Navy