Taylor-Couette flow may be used to study angular momentum transport in rotating shear flows. The fluid is sheared between two independently rotating cylinders of radii a < b that rotate at angular velocities Ω₁ and Ω₂ for the inner and outer cylinders, respectively. Although the total fluid height is given by L, some experiments only measure the contribution to the torque over a central section of length L_mid to minimize end effects, as in (Lathrop et al. 1992b,a; Lewis & Swinney 1999; van den Berg et al. 2003, 2005, 2007; Paoletti & Lathrop 2011; van Gils et al. 2011b).