Description
The influence of rotation on stellar convection remains a complex and not fully understood phenomenon. We use numerical simulations on f-planes to study the impact of rotation on stellar convection. Our findings indicate that large-scale vortices can be naturally generated as the rotational effect intensifies. Initially, with the increase in the rotational effect, the emergence of a large-scale cyclone is noted. As the rotational effect continues to amplify, we observe the appearance of both large-scale cyclones and anticyclones. This phenomenon is not limited to a specific latitude, as it has also been observed in the simulations of f-planes conducted at lower latitudes. When we incorporated the geometric effect into our study, we made an intriguing observation - the formation of vortex crystals in the polar regions. We notice that energy and vorticity transfers can be significantly different when large-scale vorticites appear, which brings a new challenge in stellar convective theories.
