Journal article

On the propagation of planar gravity currents into a stratified ambient

Tony Zahtila, Wai Kit Lam, Leon Chan, Duncan Sutherland, Khalid Moinuddin, Albert Dai, Alex Skvortsov, Richard Manasseh, Andrew Ooi

Physics of Fluids | American Institute of Physics | Published : 2024

Abstract

Gravity currents are of high interest both for their relevance in natural scenarios and because varying horizontal buoyancy presents a canonical problem in fluid mechanics [Huppert, “Gravity currents: A personal perspective,” J. Fluid Mech. 554, 299–322 (2006)]. In this paper, attention is directed to gravity currents with a full-depth lock release propagating into a linearly stratified ambient fluid. For the case of an unstratified ambient, similarity solutions are known to capture the evolving height profile of the gravity current. We will compare this solution class with numerical data from high fidelity simulations. The presence of ambient stratification (quantified by the stratification..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council10.13039/501100000923


Awarded by Australian Government through NCI, Australia, under the National Computational Merit Allocation Scheme


Funding Acknowledgements

This research was fully supported by the Australian Government through the Australian Research Council's Discovery Projects funding scheme (Project No. DP210101965). Further, this work was supported by the computational resources provided by the Australian Government through NCI, Australia, under the National Computational Merit Allocation Scheme, the Pawsey's Energy and Resources Merit Allocation Scheme, and also the LIEF HPC-GPGPU Facility hosted at the University of Melbourne. This Facility was established with the assistance of LIEF Grant No. LE170100200.