... f.CURVILINEAR COORDINATES In principle, all problems in fluid mechanics and transport could be solved using Cartesiancoordinates. Often, however, we can take advantage of symmetry in a problem ... vector pointing the direction of increasing r, holding θ and φ fixed; eθ is the unitvector pointing the direction of increasing θ, holding r and φ fixed; and eφ is the unit vector pointing thedirection ... Thin Film Down Inclined Plane 84PROBLEMS WITH NON-ZERO INERTIA 89Rotating Disk* 89CREEPING FLOW APPROXIMATION 91CONE-AND-PLATE VISCOMETER 91CREEPING FLOW AROUND A SPHERE (Re→0) 96Scaling...