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Numerical Simulations of Internal Wave Generation by Convection in Water
Daniel Lecoanet, Michael Le Bars, Keaton J. Burns +4
Water's density maximum at 4C makes it well suited to study internal gravity wave excitation by convection: an increasing temperature profile is unstable to convection below 4C, bu…
Conduction in low Mach number flows: Part I Linear & weakly nonlinear regimes
Daniel Lecoanet, Benjamin P. Brown, Ellen G. Zweibel +3
Thermal conduction is an important energy transfer and damping mechanism in astrophysical flows. Fourier's law - the heat flux is proportional to the negative temperature gradient,…
Zombie Vortex Instability I: A Purely Hydrodynamic Instability to Resurrect the Dead Zones of Protoplanetary Disks
Philip Marcus, Suyang Pei, Chung-Hsiang Jiang +3
There is considerable interest in hydrodynamic instabilities in dead zones of protoplanetary disks as a mechanism for driving angular momentum transport and as a source of particle…
Angular Momentum Transport via Internal Gravity Waves in Evolving Stars
Jim Fuller, Daniel Lecoanet, Matteo Cantiello +1
Recent asteroseismic advances have allowed for direct measurements of the internal rotation rates of many sub-giant and red giant stars. Unlike the nearly rigidly rotating Sun, the…