Subsurface Signature of the Internal Wave Field Radiation by Submerged High Reynolds Number Stratified Wakes
Abstract
The research supported by ONR grant number N00014-08-1-0235 was conducted in two phases, as indicated above. The primary objectives of each phase are listed below. STAGE-1, "Internal Waves Generated by High Reynolds Number Stratified Wakes": Characterize the internal wave field emitted by a stratified turbulent wake during the Non- Equilibrium (NEQ) regime and the particular modifications associated with high Reynolds numbers and the secondary instabilities therein. Determine the remote signature of the wake-radiated waves, as modeled by a 2-D internal wave beam, by examining their interactions with variations in the background stratification profile. STAGE-2, "Subsurface Signature of the Internal Wave Field Radiated by Submerged High Reynolds Number Stratified Wakes": Characterize the low-wind-condition subsurface signature of a single high-frequency internal wave beam(s) in a uniform or vertically variable stratification, the latter typical of littoral ocean conditions. Correlate qualitatively and quantitatively, over a range of Reynolds and Froude numbers, the patterns of subsurface motion observed above a stratified turbulent wake with the flow patterns inside the wake core to infer the state ("age") of wake turbulence.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 26, 2014
- Accession Number
- ADA626778
Entities
People
- Peter J Diamessis
Organizations
- Cornell University School of Civil and Environmental Engineering