VISCOUS ANALYSIS OF 3-DIMENSIONAL ROTOR FLOW USING A MULTIGRID METHOD

被引:223
作者
ARNONE, A
机构
[1] Department of Energy Engineering, University of Florence, Florence
来源
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 1994年 / 116卷 / 03期
关键词
D O I
10.1115/1.2929430
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A three-dimensional code for rotating blade-row flow analysis has been developed. The space discretization uses a cell-centered scheme with eigenvalue scaling for the artificial dissipation. The computational efficiency of a four-stage Runge-Kutta scheme is enhanced by using variable coefficients, implicit residual smoothing, and a full-multigrid method. An application is presented for the NASA rotor 67 transonic fan. Due to the blade stagger and twist, a zonal, nonperiodic H-type grid is used to minimize the mesh skewness. The calculation is validated by comparing it with experiments in the range from the maximum flow rate to a near-stall condition. A detailed study of the flow structure near peak efficiency and near stall is presented by means of pressure distribution and particle traces inside boundary layers.
引用
收藏
页码:435 / 445
页数:11
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