THE EXTENSION AND APPLICATION OF 3-DIMENSIONAL TIME-MARCHING ANALYSES TO INCOMPRESSIBLE TURBOMACHINERY FLOWS

被引：11

作者：

WALKER, PJ

DAWES, WN

机构：

[1] Rolls-Royce plc, Derby

[2] Whittle Laboratory, Cambridge

来源：

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 03期

关键词：

D O I：

10.1115/1.2927671

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Conventional time-marching flow solvers perform poorly when integrating compressible flow equations at low Mach number levels. This is shown to be due to unfavorable interaction between long-wavelength errors and the inflow and outflow boundaries. Chorin 's method of artificial compressibility is adopted to extend the range of Denton’s inviscidflow solver and Dawes’ three-dimensional Navier-Stokes solver to zero Mach number flows. The paper makes a new contribution by showing how to choose the artificial acoustic speed systematically to optimize convergence rate with regard to the error wave-boundary interactions. Applications to a turbine rotor and generic water pump geometry are presented. © 1990 by ASME.

引用

页码：385 / 390

页数：6

共 9 条

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