Multigrid Calculation of Three–Dimensional Viscous Cascade Flows

TitleMultigrid Calculation of Three–Dimensional Viscous Cascade Flows
Publication TypeJournal Article
Year of Publication1993
AuthorsArnone A, Liou MS, Povinelli LA
JournalJournal of Propulsion and Power
Date Published07/1993
ISSN Number0748-4658
Other NumbersScopus 2-s2.0-0027624935

A 3-D code for viscous cascade flow prediction was developed. The space discretization uses a cell-centered scheme with eigenvalue scaling to weigh the artificial dissipation terms. Computational efficiency of a four stage Runge-Kutta scheme is enhanced by using variable coefficients, implicit residual smoothing, and a full multigrid method. The Baldwin-Lomax eddy viscosity model is used for turbulence closure. A zonal, nonperiodic grid is used to minimize mesh distortion in and downstream of the throat region. Applications are presented for an annular vane with and without end wall contouring, and for a large scale linear cascade. The calculation is validated by comparing with experiments and by studying grid dependency.