Example: Velocity and temperature profiles for laminar flow in a tube of radius o10mm have the form ()=0.-(/) 7(r)=3448+750(/)-18.8(/rn with units of m/s and K, respectively. Determine the corresponding value of the mean(or bulk) temperature,, at this axial position KNOWN: Velocity and temperature profiles for laminar flow in a tube of radius ro=10mm FIND: Mean(or bulk) temperature, Tm, at this axial position. SCHEMATIC u(n,7(0 Fluid ASSUMPTIONS: (1) Laminar incompressible flow, (2)Constant properties Heat Transfer Su Yongkang School of Mechanical EngineeringHeat Transfer Su Yongkang School of Mechanical Engineering # 7 Example: Velocity and temperature profiles for laminar flow in a tube of radius have the form with units of m/s and K, respectively. Determine the corresponding value of the mean (or bulk) temperature, , at this axial position. ro =10mm Tm  ( )  ( ) ( ) 2 4 2 ( ) 344.8 75.0 / 18.8 / ( ) 0.11 / o o o T r r r r r u r r r = + − = −