Journal
PHYSICS OF FLUIDS
Volume 26, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4903279
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- Universiti Malaysia Terengganu
- Ministry of Higher Education of Malaysia
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In the context of fluid flows, the coupled Ostrovsky equations arise when two distinct linear long wave modes have nearly coincident phase speeds in the presence of background rotation. In this paper, nonlinear waves in a stratified fluid in the presence of shear flow are investigated both analytically, using techniques from asymptotic perturbation theory, and through numerical simulations. The dispersion relation of the system, based on a three-layer model of a stratified shear flow, reveals various dynamical behaviours, including the existence of unsteady and steady envelope wave packets. (C) 2014 AIP Publishing LLC.
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