3D casing-distributor analysis with a novel block coupled OpenFOAM solver for hydraulic design application

27th IAHR Symposium on Hydraulic Machinery and Systems

Devals, C.^1 ; Zhang, Y.^1 ; Dompierre, J.^1 ; Vu, T.C.^2 ; Mangani, L.^3 ; Guibault, F.^1

École Polytechnique de Montréal, Montréal

QC, Canada^1

Andritz Hydro, Pointe-Claire

QC, Canada^2

Lucerne University of Applied Sciences and Arts, Technik and Architektur, Horw, Switzerland^3

关键词: Commercial solvers;    Design engineers;    Different geometry;    Hydraulic components;    Hydraulic designs;    Mesh generators;    Reynolds Averaged Navier-Stokes Equations;    SST turbulence models;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/22/2/022005/pdf
DOI  :  10.1088/1755-1315/22/2/022005

来源: IOP

【 摘 要 】

Nowadays, computational fluid dynamics is commonly used by design engineers to evaluate and compare losses in hydraulic components as it is less expensive and less time consuming than model tests. For that purpose, an automatic tool for casing and distributor analysis will be presented in this paper. An in-house mesh generator and a Reynolds Averaged Navier-Stokes equation solver using the standard k-ω SST turbulence model will be used to perform all computations. Two solvers based on the C++ OpenFOAM library will be used and compared to a commercial solver. The performance of the new fully coupled block solver developed by the University of Lucerne and Andritz will be compared to the standard 1.6ext segregated simpleFoam solver and to a commercial solver. In this study, relative comparisons of different geometries of casing and distributor will be performed. The present study is thus aimed at validating the block solver and the tool chain and providing design engineers with a faster and more reliable analysis tool that can be integrated into their design process.