Couston, L.-A. Lecoanet, D. Favier, B. and Le Bars, M. 2017. Dynamics of mixed convective–stably-stratified fluids. Physical Review Fluids, Vol. 2,
Sutherland, Bruce R. and Hong, Youn Sub (Dominic) 2016. Sedimentation from particle-bearing plumes in a stratified ambient. Physical Review Fluids, Vol. 1,
Bouffard, Damien Zdorovennov, Roman E. Zdorovennova, Galina E. Pasche, Natacha Wüest, Alfred and Terzhevik, Arkady Y. 2016. Ice-covered Lake Onega: effects of radiation on convection and internal waves. Hydrobiologia, Vol. 780, p. 21.
Ungarish, M. Johnson, C.G. and Hogg, A.J. 2016. Sustained axisymmetric intrusions in a rotating system. European Journal of Mechanics - B/Fluids, Vol. 56, p. 110.
Ezhova, Ekaterina Cenedese, Claudia and Brandt, Luca 2016. Interaction between a Vertical Turbulent Jet and a Thermocline. Journal of Physical Oceanography, Vol. 46, p. 3415.
Lecoanet, Daniel Le Bars, Michael Burns, Keaton J. Vasil, Geoffrey M. Brown, Benjamin P. Quataert, Eliot and Oishi, Jeffrey S. 2015. Numerical simulations of internal wave generation by convection in water. Physical Review E, Vol. 91,
Bars, Michael Le Lecoanet, Daniel Perrard, Stéphane Ribeiro, Adolfo Rodet, Laetitia Aurnou, Jonathan M and Gal, Patrice Le 2015. Experimental study of internal wave generation by convection in water. Fluid Dynamics Research, Vol. 47, p. 045502.
Wain, Danielle J. Lilly, Jonathan M. Callaghan, Adrian H. Yashayaev, Igor and Ward, Brian 2015. A breaking internal wave in the surface ocean boundary layer. Journal of Geophysical Research: Oceans, Vol. 120, p. 4151.
Randriamampianina, Anthony and Crespo del Arco, Emilia 2015. Inertia–gravity waves in a liquid-filled, differentially heated, rotating annulus. Journal of Fluid Mechanics, Vol. 782, p. 144.
Johnson, Christopher G. Hogg, Andrew J. Huppert, Herbert E. Sparks, R. Stephen J. Phillips, Jeremy C. Slim, Anja C. and Woodhouse, Mark J. 2015. Modelling intrusions through quiescent and moving ambients. Journal of Fluid Mechanics, Vol. 771, p. 370.
Rooney, G. G. and Devenish, B. J. 2014. Plume rise and spread in a linearly stratified environment. Geophysical & Astrophysical Fluid Dynamics, Vol. 108, p. 168.
Richards, Tamar S. Aubourg, Quentin and Sutherland, Bruce R. 2014. Radial intrusions from turbulent plumes in uniform stratification. Physics of Fluids, Vol. 26, p. 036602.
Munroe, James R. and Sutherland, Bruce R. 2014. Internal wave energy radiated from a turbulent mixed layer. Physics of Fluids, Vol. 26, p. 096604.
Rogers, T. M. Lin, D. N. C. McElwaine, J. N. and Lau, H. H. B. 2013. INTERNAL GRAVITY WAVES IN MASSIVE STARS: ANGULAR MOMENTUM TRANSPORT. The Astrophysical Journal, Vol. 772, p. 21.
Mathis, S. Alvan, L. Remus, F. Hennebelle, P. and Charbonnel, C. 2013. Internal waves and tides in star-planet systems. EAS Publications Series, Vol. 62, p. 323.
Sutherland, Bruce R. Lee, Brace and Ansong, Joseph K. 2012. Light attenuation experiments on double diffusive plumes and fountains. Physics of Fluids, Vol. 24, p. 066605.
Rogers, T. M. and MacGregor, K. B. 2011. On the interaction of internal gravity waves with a magnetic field - II. Convective forcing. Monthly Notices of the Royal Astronomical Society, Vol. 410, p. 946.
Ansong, Joseph K. Anderson-Frey, Alexandra and Sutherland, Bruce R. 2011. Turbulent fountains in one- and two-layer crossflows. Journal of Fluid Mechanics, Vol. 689, p. 254.
Holdsworth, Amber M. Décamp, Sabine and Sutherland, Bruce R. 2010. The axisymmetric collapse of a mixed patch and internal wave generation in uniformly stratified fluid. Physics of Fluids, Vol. 22, p. 106602.
We present experimental results of the generation of internal gravity waves by a turbulent buoyant plume impinging upon the interface between a uniform density layer of fluid and a linearly stratified layer. The wave field is observed and its properties are measured non-intrusively using axisymmetric Schlieren. In particular, we determine the fraction of the energy flux associated with the plume at the neutral buoyancy level that is extracted by the waves. On average, this was found to be approximately 4%. Within the limits of the experimental parameters, the maximum vertical displacement amplitude of waves were found to depend linearly upon the maximum penetration height of the plume beyond the neutral level. The frequency of the waves was found to lie in a narrow range relative to the buoyancy frequency. The results are used to interpret the generation of waves in the atmosphere by convective storms impinging upon the tropopause via the mechanical oscillator effect.
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