A new fully coupled method for computing turbulent flows

摘要: Abstract This work discusses the computation of steady, turbulent, two-dimensional incompressible viscous flow on structured cell-centered collocated grids. A rather new computational approach – so-called fully coupled procedure with defect correction technique is presented as an alternative both to classical decoupled approaches (SIMPLE [Int. J. Heat Mass Transfer 15 (1972) 1787–1806], PISO [J. Comput. Phys. 62(1) (1986) 40–65] and variants) weakly solution methods Vanka type [Fifth symposium Turbulent Shear flows, 1985. p. 20:27–32, 65 138–158]. Its main features will be highlighted detailed. strategy evaluated two demanding test cases (the simulation separated past AS240-B airfoil at high incidence (19°, Re=2×10 6 ) wake behind a hill ( Re =60 000 )), for which documented experimental data are available. Both robustness efficiency shown.