Coupled convection and internal gravity waves excited in water around its density maximum at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>4</mml:mn><mml:mo>°</mml:mo><mml:mi mathvariant="normal">C</mml:mi></mml:mrow></mml:math>
P. Léard, B. Favier, P. Le Gal, M. Le Bars
Abstract
Experiments and three-dimensional direct numerical simulations are carried out to investigate the interaction between a turbulent convective layer and a stratified layer in a self-organizing fluid. Internal gravity waves are generated, and a reversing horizontal large-scale flow is seen in the stratified layer, driven by a third intermediate layer.
Topics & Concepts
Internal waveMechanicsConvectionGravity wavePhysicsTurbulenceGravity currentExcited stateStratified flowGravitational waveFlow (mathematics)Convective flowLayer (electronics)Classical mechanicsReversingMaximum densityStratified flowsGeologyMeteorologyBoundary layerDispersion (optics)GeophysicsDensity contrastIntensity (physics)Convection cellWork (physics)Numerical modelsInfragravity waveRayleigh–Bénard convectionComputer simulationOceanographic and Atmospheric ProcessesOcean Waves and Remote SensingFluid Dynamics and Turbulent Flows