Forced Linear Shear Flows with Rotation: Rotating Couette–Poiseuille Flow, Its Stability, and Astrophysical Implications

We explore the effect of forcing on linear shear flow or plane Couette flow, which is also background in very small region Keplerian accretion disk. show that depending strength and boundary conditions suitable for systems under consideration, and, hence, disk velocity profile modifies to parabolic Poiseuille Couette-Poiseuille frame reference. In presence rotation, becomes unstable at a smaller Reynolds number pure vertical as well threedimensional perturbations. Hence, while rotation stabilizes same destabilizes faster forced local Depending various factors, when shearing box due extra force, even hence turbulence will pop there. This helps resolving long standing problem sub-critical transition hydrodynamic disks laboratory flow.