Turbulent Rayleigh–Bénard convection in a wide cylinder is simulated numerically. We focus on large-scale circulation(s) (LSC) in moderate aspect-ratio domains. The Rayleigh number is 9.6 × 107 and the aspect-ratio (diameter/height) is 6.3. Statistics of the simulation agree well with experiments. A persistent 120° hub-and-spoke pattern and a central updraft dominates the LSC.