Unsteadiness and viscous losses in hydraulic turbines

被引：5
|
作者：
Cervantes, Michel J. [1 ]
Gustavsson, L. Hakan [1 ]
机构：
[1] Lulea Univ Technol, Div Fluid Mech, SE-97187 Lulea, Sweden
来源：
JOURNAL OF HYDRAULIC RESEARCH | 2006年 / 44卷 / 02期
关键词：
unsteadiness; viscous losses; scale-up formula;
D O I：
10.1080/00221686.2006.9521679
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The variation of the mechanical energy for the mean, oscillating and turbulent flows are considered. Their mean point out the contribution of the unsteadiness to the viscous losses and the turbulent production. A two-dimensional turbulent pulsating flow is investigated for different unsteady regimes to illustrate the effects of unsteadiness on the overall losses.
引用
收藏
页码：249 / 258
页数：10
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