Rotating Convection

In typical experiments of rotating Rayleigh–Bénard convection the fluid is confined in a cylinder and rotated about its vertical axis. Thus, to allow for a comparison with the experimental setup at the MPIDS we employ the same geometry in our direct numerical simulations. Although the setup is rather simple, the generated turbulent flows are highly complex and provide physical insight into the rotating buoyancy-driven flows occurring in geo- and astrophysics.

Instantaneous temperature fields of a fluid with Pr=0.8 and Ra=108; the rotation rate increases from left to right, with the leftmost being still.

Further reading

Susanne Horn and Olga Shishkina. Toroidal and poloidal energy in rotating Rayleigh–Bénard convection. J. Fluid Mech. 762 (2015), 232–255.

Susanne Horn and Olga Shishkina. Rotating non-Oberbeck–Boussinesq Rayleigh–Bénard convection in water. Phys. Fluids 26 (2014), 055111.