My interests lie in astrophysical and geophysical fluid dynamics. I concentrate on the highly nonlinear, turbulent flow regimes, using high resolution numerical simulations for such studies. In particular, my research is currently focused on dynamos, where turbulence in an electrically-conducting fluid creates and maintains strong magnetic field, with a particular view to understanding the origin of magnetic activity of our Sun. The demands of such problems consume a great deal of cutting-edge supercomputing power and therefore the algorithms of efficient parallel computing are a complementary research topic. I am also interested in more basic fluid dynamic phenomena, such as double-diffusive instabilities and aerodynamics.