Recursive Projection Method for efficient unsteady CFD simulations
2004 (English)In: / [ed] P. Neittaanmäki, T. Rossi, K. Majava, and O. Pironneau, 2004, 1-20 p.Conference paper (Refereed)
The Recursive Projection Method (RPM) has been implemented into the unstructured grid CFD code EDGE to accelerate the inner-loop convergence of dual time stepping. The method tries to identify the slowly converging subspace and applies Newton iterations in this subspace together with a fixed point scheme in the complement. The method has been employed to compute the steady and unsteady viscous flow around a circular cylinder for a Reynolds number of 100. When converging to machine accuracy, RPM accelerated the convergence of the steady-state solution by a factor of 2.5. The time-accurate simulations were accelerated by a factor of about two.
Place, publisher, year, edition, pages
2004. 1-20 p.
recursive Projection Method, unsteady aerodynamics, CFD, convergence, dual time stepping, vortex street
IdentifiersURN: urn:nbn:se:kth:diva-4925ScopusID: 2-s2.0-84893505605OAI: oai:DiVA.org:kth-4925DiVA: diva2:7055
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004; Jyvaskyla; Finland; 24-28 July 2004
QC 201412102005-02-112005-02-112014-12-10Bibliographically approved