%0 Journal Article %T Optimal kinematic dynamos in a sphere %A Andrew Jackson %A Jiawen Luo %A Kuan Li %A Long Chen %J - %D 2020 %R 10.1098/rspa.2019.0675 %X A variational optimization approach is used to optimize kinematic dynamos in a unit sphere and locate the enstrophy-based critical magnetic Reynolds number for dynamo action. The magnetic boundary .. %U https://royalsocietypublishing.org/doi/10.1098/rspa.2019.0675