High Resolutons of Turbulent Stratified Wake: Body Maneuvers and Background Conditions
Abstract
Abstract Spatially-evolving simulations that include the body are proposed for stratified flow past two geometries: a sphere and the DARPA suboff body. A new hybrid computational model will be developed to perform turbulence-resolving simulations of wakes at high Reynolds and Froude numbers. Unsteady maneuvers of the body that impart momentum to the wake over a transient will be simulated. Energy transfers between the mean and fluctuation fields during the maneuver will be quantified, and the vortex dynamics and internal wave field associated with the maneuver will be characterized. The marine environment is turbulent and could qualitatively modify the evolution of the wake. The interaction of wakes with background turbulence in a non-uniform background stratification will be investigated to assess changes in wake dynamics introduced by background turbulence.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512718
Entities
People
- Sutanu Sarkar
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego