Abstract
This paper discusses the computation of unsteady two-dimensional incompressible viscous flow on unstructured cell-centered collocated grids using a finite volume technique. A fully second order coupled resolution method is presented for solving unsteady Navier-Stokes equations, an alternative to classical segregated approaches, like SIMPLE or P1SO. Whereas the segregated methods lead to a sequential resolution of discrete equations and under-relaxation procedures, with the fully coupled method, only one linear system in velocity-pressure is solved, no relaxation or special treatment is required to ensure convergence, as equation coupling is done implicitly. The non-linear effects are thus handled better, and the non-linear residues convergence is considerably accelerated. Robustness and efficiency, ability and accuracy of this method are demonstrated to simulate unsteady flow around a cylinder at various Reynolds numbers.
Original language | English |
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Title of host publication | EACWE 2005 - 4th European and African Conference on Wind Engineering |
Pages | 90-91 |
Number of pages | 2 |
Publication status | Published - 1 Dec 2005 |
Event | 4th European and African Conference on Wind Engineering, EACWE 2005 - Prague, Czech Republic Duration: 11 Jul 2005 → 15 Jul 2005 |
Conference
Conference | 4th European and African Conference on Wind Engineering, EACWE 2005 |
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Country/Territory | Czech Republic |
City | Prague |
Period | 11/07/05 → 15/07/05 |