TY  - JOUR
A1  - Feudel, Fred
A1  - Tuckerman, L. S.
A1  - Gellert, Marcus
A1  - Seehafer, Norbert
T1  - Bifurcations of rotating waves in rotating spherical shell convection
JF  - Physical Review  E
N2  - The dynamics and bifurcations of convective waves in rotating and buoyancy-driven spherical Rayleigh-Benard convection are investigated numerically. The solution branches that arise as rotating waves (RWs) are traced by means of path-following methods, by varying the Rayleigh number as a control parameter for different rotation rates. The dependence of the azimuthal drift frequency of the RWs on the Ekman and Rayleigh numbers is determined and discussed. The influence of the rotation rate on the generation and stability of secondary branches is demonstrated. Multistability is typical in the parameter range considered.
KW  - nonsymmetric linear-systems
KW  - thermal-convection
KW  - fluid shells
KW  - hopf-bifurcation
KW  - onset
KW  - magnetoconvection
KW  - number
KW  - flow
Y1  - 2015
U6  - https://doi.org/10.1103/PhysRevE.92.053015
SN  - 1539-3755
SN  - 1550-2376
VL  - 92
IS  - 5
PB  - American Physical Society
CY  - Woodbury
ER  -