Numerical investigation for one bad-behaved flow in a Pelton turbine

X. Z. Wei; K. Yang; H. J. Wang; R. Z. Gong; D. Y. Li

doi:10.1088/1757-899X/72/4/042033

Numerical investigation for one bad-behaved flow in a Pelton turbine

X. Z. Wei
, K. Yang^*
, H. J. Wang
, R. Z. Gong
, D. Y. Li

^*Corresponding author for this work

Harbin Electric Power Equipment Co. Ltd.
Harbin Institute of Large Electrical Machinery
School of Energy Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

The gas-liquid two-phase flow in pelton turbines is very complicated, there are many kinds of bad-behaved flow in pelton turbines. In this paper, CFD numerical simulation for the pelton turbine was conducted using VOF two-phase model. One kind of bad-behaved flow caused by the two jets was captured, and the bad-behaved flow was analysed by torque on buckets. It can be concluded that the angle between the two jets and the value of ratio of runner diameter and jet diameter are important parameters for the bad-behaved flow. Furthermore, the reason why the efficiency of some multi-jet type turbines is very low can be well explained by the analysis of bad-behaved flow. Finally, some suggestions for improvement were also provided in present paper.

Original language	English
Article number	042033
Journal	IOP Conference Series: Materials Science and Engineering
Volume	72
Issue number	Forum 4
DOIs	https://doi.org/10.1088/1757-899X/72/4/042033
State	Published - 2015
Externally published	Yes
Event	International Symposium of Cavitation and Multiphase Flow, ISCM 2014 - Beijing, China Duration: 18 Oct 2014 → 21 Oct 2014

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title = "Numerical investigation for one bad-behaved flow in a Pelton turbine",

abstract = "The gas-liquid two-phase flow in pelton turbines is very complicated, there are many kinds of bad-behaved flow in pelton turbines. In this paper, CFD numerical simulation for the pelton turbine was conducted using VOF two-phase model. One kind of bad-behaved flow caused by the two jets was captured, and the bad-behaved flow was analysed by torque on buckets. It can be concluded that the angle between the two jets and the value of ratio of runner diameter and jet diameter are important parameters for the bad-behaved flow. Furthermore, the reason why the efficiency of some multi-jet type turbines is very low can be well explained by the analysis of bad-behaved flow. Finally, some suggestions for improvement were also provided in present paper.",

author = "Wei, \{X. Z.\} and K. Yang and Wang, \{H. J.\} and Gong, \{R. Z.\} and Li, \{D. Y.\}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; International Symposium of Cavitation and Multiphase Flow, ISCM 2014 ; Conference date: 18-10-2014 Through 21-10-2014",

year = "2015",

doi = "10.1088/1757-899X/72/4/042033",

language = "英语",

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journal = "IOP Conference Series: Materials Science and Engineering",

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T1 - Numerical investigation for one bad-behaved flow in a Pelton turbine

AU - Wei, X. Z.

AU - Yang, K.

AU - Wang, H. J.

AU - Gong, R. Z.

AU - Li, D. Y.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2015

Y1 - 2015

N2 - The gas-liquid two-phase flow in pelton turbines is very complicated, there are many kinds of bad-behaved flow in pelton turbines. In this paper, CFD numerical simulation for the pelton turbine was conducted using VOF two-phase model. One kind of bad-behaved flow caused by the two jets was captured, and the bad-behaved flow was analysed by torque on buckets. It can be concluded that the angle between the two jets and the value of ratio of runner diameter and jet diameter are important parameters for the bad-behaved flow. Furthermore, the reason why the efficiency of some multi-jet type turbines is very low can be well explained by the analysis of bad-behaved flow. Finally, some suggestions for improvement were also provided in present paper.

AB - The gas-liquid two-phase flow in pelton turbines is very complicated, there are many kinds of bad-behaved flow in pelton turbines. In this paper, CFD numerical simulation for the pelton turbine was conducted using VOF two-phase model. One kind of bad-behaved flow caused by the two jets was captured, and the bad-behaved flow was analysed by torque on buckets. It can be concluded that the angle between the two jets and the value of ratio of runner diameter and jet diameter are important parameters for the bad-behaved flow. Furthermore, the reason why the efficiency of some multi-jet type turbines is very low can be well explained by the analysis of bad-behaved flow. Finally, some suggestions for improvement were also provided in present paper.

UR - https://www.scopus.com/pages/publications/84924326476

U2 - 10.1088/1757-899X/72/4/042033

DO - 10.1088/1757-899X/72/4/042033

M3 - 会议文章

AN - SCOPUS:84924326476

SN - 1757-8981

VL - 72

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - Forum 4

M1 - 042033

T2 - International Symposium of Cavitation and Multiphase Flow, ISCM 2014

Y2 - 18 October 2014 through 21 October 2014

ER -

Numerical investigation for one bad-behaved flow in a Pelton turbine

Abstract

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