RT Journal Article ID 23e894404e009baf A1 Gorla, Madhu Sudan Reddy A1 Gorla, R.S.R. T1 Rheological Effects on Tear Film Rupture JF International Journal of Fluid Mechanics Research JO FMR YR 2004 FD 2005-06-07 VO 31 IS 6 SP 552 OP 562 AB The drainage of the precorneal tear film in humans is studied. A fluid dynamic model for the drainage of the aqueous layer is developed that includes rheological effects. The Ostwald de Waele type power law model is employed to model the tear film. The nonlinear evolution equation for the film is formulated using the balance equations including a body force term due to van der Waals molecular attractions, lubrication theory and perturbation expansion method. The governing equation was solved by the finite difference method as part of an initial value problem for spatial periodic boundary conditions. The influence of the power law exponent on rupture is discussed. The results indicate that the rheological effects of the tear film fluid affect the film drainage process and therefore be included in models for tear film drainage. PB Begell House LK https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,0d7a1b6b420e4d71,23e894404e009baf.html