Gravity currents in a stratified ambient fluid

Michael Patterson, A Aspden

Research output: Contribution to conferencePaper

Abstract

Motivated by the previous study of Maxworthy et al. 2002 we revisit the problem in which a lock release gravity current propagates into a stratified ambient fluid. High-resolution three-dimensional numerical simulations based on ILES framework are used in conjunction with a simple box model to develop a greater understanding of the complex interactions between the slumping gravity current and the internal waves that develop. Examination of the energetics of the system are carried out for both sub and super-critical gravity currents. The results show that for the sub-critical gravity currents the energy passed from the gravity current to the wave field and subsequently from the wave field back to the gravity current. Calculations of the energy transfer between the gravity current and the internal wave field will be presented.
Original languageEnglish
Publication statusPublished - 24 Nov 2009
Event62nd Annual Meeting of the APS Division of Fluid Dynamics - Minneapolis, Minnesota
Duration: 22 Nov 200924 Nov 2009

Conference

Conference62nd Annual Meeting of the APS Division of Fluid Dynamics
CityMinneapolis, Minnesota
Period22/11/0924/11/09

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    Patterson, M., & Aspden, A. (2009). Gravity currents in a stratified ambient fluid. Paper presented at 62nd Annual Meeting of the APS Division of Fluid Dynamics, Minneapolis, Minnesota, .