ME 518
Spring 2015
Homework 6
Due on: May 14, 2015
1. In the problem of heat transfer from a at plate with constant wall temperature that was
solved in class, obtain the expression for the Nusselt number in the limiting case of very large
Prandtl number.

ME 518
Spring 2015
Homework 5
Due on April 16, 2015
1. Consider a jet emerging from a circular hole in the wall. At large downstream distances the
ow eld must be that caused by a momentum source at the origin. Write down the boundary
layer equations for t

ME 518
Spring 2015
Homework 4
Due on April 9, 2015
1. A simple slider bearing has a uniform taper at the inlet, where the gap is b1 , to the exit,
where the gap is b2 . The bottom surface moves at a steady speed V . The local channel height
is h.
a) Show

ME 518
Spring 2015
Homework 3
Due on March 26, 2015
1. Liquid of density and viscosity ows down a wide plate inclined at an angle to the
horizontal under the inuence of gravity. The depth of the liquid normal to the plate is h. The
ow is steady and everyw

ME 518
Spring 2015
Homework 2
Due on March 26, 2015
1. Starting with an elementary volume derive the conservation of mass in cylindrical coordinates.
2. Derive the convective terms in the conservation of momentum in direction in cylindrical
coordinates?
3