Specifications

Publisher: Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE, United
Kingdom
Abstract: In this paper, the flow field considering the hub clearance flow in a Kaplan turbine has
been investigated through using the commercial CFD code ANSYS CFX based on high-quality
structured grids generated by ANSYS ICEM CFD. The turbulence is simulated by k-ω based shear
stress transport (SST) turbulence model together with automatic near wall treatments. Four kinds
of simulations have been conducted for the runner geometry without hub clearance, with only
the hub front clearance, with only the rear hub clearance, and with both front and rear clearance.
The analysis of the obtained results is focused on the flow structure of the hub clearance flow,
the effect on the turbine performance including hydraulic efficiency and cavitation performance,
which can improve the understanding on the flow field in a Kaplan turbine. © Published under
licence by IOP Publishing Ltd.
Number of references: 5
Main heading: Computational fluid dynamics
Controlled terms: Flow fields - Hydraulic machinery - Kaplan turbines - Turbulence
models
Uncontrolled terms: ANSYS-CFX - Cavitation performance - CFD codes - High quality
- Hydraulic efficiency - Near-wall treatment - Numerical investigations - Shear-stress
transport - Structured grid - Turbine performance
Classification code: 617.1 Hydraulic Turbines - 631 Fluid Flow - 632.2 Hydraulic
Equipment and Machinery
DOI: 10.1088/1755-1315/15/7/072026
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
14.
Accession number: 20130916062263
Title: Relative structure on main influence factors of international trade of new energy
materials
Authors: Xue, WeiXian1 ; Guo, Rong1/薛伟贤;郭蓉
Author affiliation: 1 School of Economics and Management, Xi'an University of Technology,
Xi'an, China
Corresponding author: Xue, W. ([e-mail])
Source title: Advanced Materials Research
Abbreviated source title: Adv. Mater. Res.
Volume: 655-657
Monograph title: Engineering Solutions for Manufacturing Processes
Issue date: 2013
Publication year: 2013
Pages: 2294-2298
Language: English
ISSN: 10226680
ISBN-13: 9783037856482
Document type: Conference article (CA)
Conference name: 2012 3rd International Conference on Advances in Materials and