24 With forward tension Exit region H )µ R h f H )µ φ (exp −1 Prof. Ramesh Singh, Notes by Dr. Singh/ Dr. Colton (exp h h f tan ) ′ Y flow ( h h f R h f =0, = p σ xf 2 = H = 0, H = H f R = h f ′ − Y ) = flow φ C p ( at