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.
|Autori interni:||SALVETTI, MARIA VITTORIA|
|Autori:||SINIBALDI E; BEUX F; SALVETTI M.V.|
|Titolo:||A numerical method for 3D barotropic flows in turbomachinery|
|Anno del prodotto:||2006|
|Digital Object Identifier (DOI):||10.1007/s10494-006-9025-7|
|Appare nelle tipologie:||1.1 Articolo in rivista|