Journal article

Front dynamics of elliptical gravity currents on a uniform slope

SJ Zhu, N Zgheib, S Balachandar, A Ooi

PHYSICAL REVIEW FLUIDS | AMER PHYSICAL SOC | Published : 2017

Abstract

In the present investigation, we report data from direct numerical simulations of elliptical, finite release, Boussinesq gravity currents propagating down a uniform slope. The study comprises a series of simulations of elliptical gravity currents on a range of slope angles. The shape parameters are varied to study the effects of the initial cross-sectional aspect ratio (Λ0) and mean height to lock radius ratio (Γ) on the dynamics of the gravity current. It is found that the long-time development of the current spatial mass distribution is influenced by its initial shape at smaller slope angles (θ=5 and 10) whereas the long-time motion of the gravity current is relatively insensitive to its i..

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University of Melbourne Researchers