External forced convection cylinders

Forced convection heat transfer is probably the most common mode in the process industries. Forced flows may be internal or external. This subsection briefly introduces correlations for estimating heat-transfer coefficients for flows in tubes and ducts flows across plates, cylinders, and spheres flows through tube banks and packed beds heat transfer to nonevaporating falling films and rotating surfaces. Section 11 introduces several types of heat exchangers, design procedures, overall heat-transfer coefficients, and mean temperature differences. 

Heat Transfer between a Fluid and the External Surfece of a Tube (Cylinder) Heat transfer by forced convection from a fluid to the surface of a cylinder for cross flow is given by the following empirical correlation (Cengel, 2002) ... 

C.4. Instead of assuming a given Sherwood nnmber for the external mass transfer coefficients, use FEMLAB to compute the laminar velocity profile aronndthe cylinder to directly model the effect of forced convection on the external mass transfer rate. Report your results for Reynolds numbers of 10 ", 10, 10, 1, 10, using a viscosity jx = 10 Pas and density p = lO kg/m ... 

---