Transient CFD simulation of a Francis turbine startup

被引：48
|
作者：
Nicolle, J. [1 ]
Morissette, J. F. [1 ]
Giroux, A. M. [1 ]
机构：
[1] Hydroquebec Res Inst, Varennes, PQ, Canada
来源：
26TH IAHR SYMPOSIUM ON HYDRAULIC MACHINERY AND SYSTEMS, PTS 1-7 | 2013年 / 15卷
关键词：
D O I：
10.1088/1755-1315/15/6/062014
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
To assess the life expectancy of hydraulic turbines, it is essential to obtain the loading on the blades, especially during transient operations known to be the most damaging. This paper presents a simplified CFD setup to model the startup phase of a Francis turbine while it goes from rest to speed no-load condition. The fluid domain included one distributor sector coupled with one runner passage. The guide vane motion and change in the angular velocity were included in a commercial code with user functions. Comparisons between numerical results and measurements acquired on a full-size turbine showed that most of the flow physics occurring during startup were captured.
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页数：8
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