adiabatic 15.07 u(r) Tir) Problem 2. Flow in annulus with heat transfer Consider a concentric tube with the inner radius , and outer radius ro, with fluid flowing through the annulus region. The outer surface is insulated (at r. q." = 0) and the inner surface is subjected to a uniform heat flux (atris 9"). Fully developed, laminar flow may be assumed to exist in the annulus. a. Give the simplified equation of motion and boundary conditions for this system. b. Determine the velocity profile u(r) in the annular region. c. If viscous dissipation is negligible, give the appropriate form of the energy equation and boundary conditions. d. Determine the temperature profile T() in the annular region