26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS2008-2.1 ST1:

KRYLOV RECYCLING TECHNIQUES FOR UNSTEADY SIMULATION OF TURBULENT AERODYNAMIC FLOWS

K. Mohamed, S. Nadarajah, M. Paraschivoiu*
McGill Univ., Canada; *Concordia Univ., Canada

Keywords: Iterative Solvers, Krylov Subspace Recycling, CFD, Convergence Acceleration

The performance of the Krylov subspace recycling techniques to accelerate the convergence of the large scale unsteady aerodynamic simulations is investigated. Unsteady aerodynamic flow around LANN wing in pitching oscillations is simulated. The real and imaginary components of the oscillatory pressure coefficients are predicted in a considerably smaller CPU time.

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