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Efficient numerical methods to compute unsteady subsonic flows: A new refinement strategy for grid adaptation and a tailored Jacobian-free Newton-Krylov algorithm for unsteady flow problems, Lucas, Peter; Bijl, Hester
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Author Name:    Lucas, Peter; Bijl, Hester

Title:   Efficient numerical methods to compute unsteady subsonic flows: A new refinement strategy for grid adaptation and a tailored Jacobian-free Newton-Krylov algorithm for unsteady flow problems

Binding:   PAPERBACK

Book Condition:   New

Publisher:    LAP LAMBERT Academic Publishing 

ISBN Number:   3838385764 / 9783838385761

Seller ID:   ING9783838385761

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Despite the large increase in computer power and the advances in solver technology, unsteady flow problems still may require a vast amount of computing time. In this work two approaches are investigated that should lead to a reduction in computing times for unsteady subsonic flows. In the first part of this work a new refinement strategy for grid adaptation is proposed that enables the user to a priori define the maximum usable computer resources. In the second part of this work a Jacobian-free Newton-Krylov algorithm is tailored for unsteady subsonic flow problems. With this algorithm computing times are reduced with one order of magnitude compared to the traditional used solver.



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