Nonlinear moving boundary problems and a Keller box scheme. (English) Zbl 0558.65087

Authors’ summary: A modification of the original Keller box scheme is used to approximate nonlinear parabolic differential equations with moving boundaries. The proposed scheme solves two systems of linear algebraic equations at each time-step to produce second-order approximations to the solution, its derivative (the flux) and the position of the moving boundary. The scheme is applied to a physical problem which has a known similarity solution. A comparison of numerical results with the similarity solution gives evidence of stability and convergence.
Reviewer: U.Hornung


65Z05 Applications to the sciences
65N12 Stability and convergence of numerical methods for boundary value problems involving PDEs
35K60 Nonlinear initial, boundary and initial-boundary value problems for linear parabolic equations
35R35 Free boundary problems for PDEs
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