A numerical method for 3D barotropic flows in turbomachinery

被引：27
作者：
Sinibaldi, Edoardo
Beux, Francois
Salvetti, Maria Vittoria
机构：
[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy
[2] Univ Pisa, Dip Ingn Aerospaziale, I-56122 Pisa, Italy
来源：
FLOW TURBULENCE AND COMBUSTION | 2006年 / 76卷 / 04期
关键词：
barotropic; cavitation; turbomachinery; unstructured grids; low Mach; preconditioning; implicit;
D O I：
10.1007/s10494-006-9025-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A numerical method for the simulation of 3D inviscid barotropic flows in rotating frames is presented. A barotropic state law incorporating a homogeneous-flow cavitation model is considered. The discretisation is based on a finite-volume formulation applicable to unstructured grids. A shock-capturing Roe-type upwind scheme is proposed for barotropic flows. The accuracy of the proposed method at low Mach numbers is ensured by ad-hoc preconditioning, preserving time consistency. An implicit time advancing only relying on the algebraic properties of the Roe flux function, and thus applicable to a variety of problems, is presented. The proposed numerical ingredients, already validated in a 1D context and applied to 3D non-rotating computations, are then applied to the 3D water flow around a typical turbopump inducer.
引用
收藏
页码：371 / 381
页数：11
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