Numerical Investigation of Solitary Internal Wave-Induced Global Instability in Shallow Water Benthic Boundary Layers

• Published in: Journal of physical oceanography Vol. 36; no. 5; pp. 784 - 812
• Main Authors: Diamessis, Peter J., Redekopp, Larry G.
• Format: Journal Article
• Language: English
• Published: Boston, MA American Meteorological Society 01.05.2006
• Subjects: Boundary layer; Boundary layers; Coastal oceanography, estuaries. Regional oceanography; Earth sciences; Earth, ocean, space; Exact sciences and technology; External geophysics; Fluid dynamics; Hydrology; Hydrology. Hydrogeology; Internal waves; Oceanography; Oceans; Physics of the oceans; Shallow water; Shear stress; Solitary waves; Water column; Solitary wave; Vortex shedding; Forced wave; boundary layer; Layered fluid; digital simulation; Shallow water; Wave propagation; internal waves; instability; Coastal water; lakes; Non linear wave; Benthic zone

The time-dependent boundary layer induced by a weakly nonlinear solitary internal wave in shallow water is examined through direct numerical simulation. Waves of depression and elevation are both considered. The mean density field corresponds to that typical of the coastal ocean and lakes where the...