Experiments on the stability of viscous flow between rotating cylinders II. Visual observations

Abstract

Measurements of the hydrodynamic stability of viscous flow between rotating cylinders have been made with an apparatus similar to that used by Taylor in his original experiments. The ratio of the radii of the cylinders was 1:2. The results confirm Chandrasekhar's theoretical calculations within experimental error. The asymptotic form of the stability relation when the cylinders rotate in opposite directions is derived and found to agree with experimental data at hand.