Slip-flow boundary conditions for non-Newtonian lubrication layers

The effect of a thin lubricating film of a power-law fluid between a bulk f low and a solid surface can be accommodated by a new slip-flow boundary con dition. The applicability of this condition in boundary layer theory is exp lored and numerical similarity solutions are presented for plane stagnation -point flow. The amount of velocity slip is controlled by a single dimensio nless lubrication constant. (C) 1999 The Japan Society of Fluid Mechanics a nd Elsevier Science B.V. All rights reserved.