Abstract
We study the numerical solution of semilinear parabolic PDEs on unbounded spatial domains Ω in ℝ2 whose solutions blow up in finite time. Of particular interest are the cases where Ω=ℝ2 or Ω is a sectorial domain in ℝ2. We derive the nonlinear absorbing boundary conditions for corresponding, suitably chosen computational domains and then employ a simple adaptive time-stepping scheme to compute the solution of the resulting system of semilinear ODEs. The theoretical results are illustrated by a broad range of numerical examples.
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Zhang, J., Han, H. & Brunner, H. Numerical Blow-up of Semilinear Parabolic PDEs on Unbounded Domains in ℝ2 . J Sci Comput 49, 367–382 (2011). https://doi.org/10.1007/s10915-011-9467-5
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DOI: https://doi.org/10.1007/s10915-011-9467-5