Fast numerical solution of nonlinear nonlocal cochlear models

  • Authors:
  • Daniele Bertaccini;Renata Sisto

  • Affiliations:
  • Universití di Roma "Tor Vergata", Dipartimento di Matematica, viale della Ricerca Scientifica 1, 00133 Roma, Italy;INAIL, Italian Workers' Compensation Authority, National Research Centre for Occupational Safety and Prevention, Dipartimento Igiene del Lavoro, 00040 Monte Porzio Catone, Roma, Italy

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2011

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Abstract

A fast full second order time-step algorithm for some recently proposed nonlinear, nonlocal active models for the inner ear is analyzed here. In particular, we emphasize the properties of discretized systems and the convergence of a hybrid direct-iterative solver for its approximate solution in view of the parameters of the continuous model. We found that the proposed solver is faster than standard sparse direct solvers for all the considered discrete models. Numerical tests confirm that the proposed techniques are crucial in order to get fast and reliable simulations.