Outer angular-momentum flux of a viscous disk
= Outer angular-momentum flux of a viscous disk
Integrating the <Keplerian accretion disk> diffusion equation gives $dJ/dt=6\pi\sqrt{GM_\star}[r^{3/2}\partial_r(\bar\nu\Sigma)]_{\rm inner}^{\rm outer}$ when the angular-momentum integral and boundary limits are legitimate. An inner <zero-torque inner boundary condition> alone does not eliminate the outer <angular-momentum flux>. For divergent total $J$, use finite-radius cutoffs before making a conservation claim.