An adaptive finite element method for the inequality-constrained Reynolds equation
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© 2018 Elsevier B.V. We present a stabilized finite element method for the numerical solution of cavitation in lubrication, modeled as an inequality-constrained Reynolds equation. The cavitation model is written as a variable coefficient saddle-point problem and approximated by a residual-based stabilized method. Based on our recent results on the classical obstacle problem, we present optimal a priori estimates and derive novel a posteriori error estimators. The method is implemented as a Nitsche-type finite element technique and shown in numerical computations to be superior to the usually applied penalty methods.
author list (cited authors)
Gustafsson, T., Rajagopal, K. R., Stenberg, R., & Videman, J.