Numerical study of francis turbine flow field under small opening condition

Yang Yao; Hongjie Wang; Ruzhi Gong; Xianzhu Wei; Wanjiang Liu

doi:10.1109/EMEIT.2011.6023004

Numerical study of francis turbine flow field under small opening condition

Yang Yao^*
, Hongjie Wang
, Ruzhi Gong
, Xianzhu Wei
, Wanjiang Liu

^*Corresponding author for this work

School of Energy Science and Engineering, Harbin Institute of Technology
Harbin Institute of Large Electrical Machinery

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

In order to study the cause of Francis turbine abnormal oscillation under small opening condition, CFD method was adopted to analyze the flow filed and its impact on turbine stability. Numerical simulation was performed on the commercial CFD code FLUENT 6.2, using RNG - model. Through an effective validation of the computation result and detailed flow analysis, the paper showed vortices existed in runner and draft tube flow field, abnormal pressure distribution on blades and vanes, and reverse flow in guide vanes under reverse pump condition. The result shows that the unstable flow under small opening condition leads to an increase of turbine instability, and is one possible reason of the abnormal oscillation.

Original language	English
Title of host publication	Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011
Pages	1675-1678
Number of pages	4
DOIs	https://doi.org/10.1109/EMEIT.2011.6023004
State	Published - 2011
Externally published	Yes
Event	2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011 - Harbin, China Duration: 12 Aug 2011 → 14 Aug 2011

Publication series

Name	Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011
Volume	4

Conference

Conference	2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011
Country/Territory	China
City	Harbin
Period	12/08/11 → 14/08/11

Keywords

CFD
Francis Turbine
Small opening condition
Stability

Access to Document

10.1109/EMEIT.2011.6023004

Cite this

Yao, Y., Wang, H., Gong, R., Wei, X., & Liu, W. (2011). Numerical study of francis turbine flow field under small opening condition. In Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011 (pp. 1675-1678). Article 6023004 (Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011; Vol. 4). https://doi.org/10.1109/EMEIT.2011.6023004

Yao, Yang ; Wang, Hongjie ; Gong, Ruzhi et al. / Numerical study of francis turbine flow field under small opening condition. Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011. 2011. pp. 1675-1678 (Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011).

@inproceedings{c49358567f544c6da578854f236f139c,

title = "Numerical study of francis turbine flow field under small opening condition",

abstract = "In order to study the cause of Francis turbine abnormal oscillation under small opening condition, CFD method was adopted to analyze the flow filed and its impact on turbine stability. Numerical simulation was performed on the commercial CFD code FLUENT 6.2, using RNG - model. Through an effective validation of the computation result and detailed flow analysis, the paper showed vortices existed in runner and draft tube flow field, abnormal pressure distribution on blades and vanes, and reverse flow in guide vanes under reverse pump condition. The result shows that the unstable flow under small opening condition leads to an increase of turbine instability, and is one possible reason of the abnormal oscillation.",

keywords = "CFD, Francis Turbine, Small opening condition, Stability",

author = "Yang Yao and Hongjie Wang and Ruzhi Gong and Xianzhu Wei and Wanjiang Liu",

year = "2011",

doi = "10.1109/EMEIT.2011.6023004",

language = "英语",

isbn = "9781612840857",

series = "Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011",

pages = "1675--1678",

booktitle = "Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011",

note = "2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011 ; Conference date: 12-08-2011 Through 14-08-2011",

}

Yao, Y, Wang, H, Gong, R, Wei, X & Liu, W 2011, Numerical study of francis turbine flow field under small opening condition. in Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011., 6023004, Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, vol. 4, pp. 1675-1678, 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, Harbin, China, 12/08/11. https://doi.org/10.1109/EMEIT.2011.6023004

Numerical study of francis turbine flow field under small opening condition. / Yao, Yang; Wang, Hongjie; Gong, Ruzhi et al.
Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011. 2011. p. 1675-1678 6023004 (Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Numerical study of francis turbine flow field under small opening condition

AU - Yao, Yang

AU - Wang, Hongjie

AU - Gong, Ruzhi

AU - Wei, Xianzhu

AU - Liu, Wanjiang

PY - 2011

Y1 - 2011

N2 - In order to study the cause of Francis turbine abnormal oscillation under small opening condition, CFD method was adopted to analyze the flow filed and its impact on turbine stability. Numerical simulation was performed on the commercial CFD code FLUENT 6.2, using RNG - model. Through an effective validation of the computation result and detailed flow analysis, the paper showed vortices existed in runner and draft tube flow field, abnormal pressure distribution on blades and vanes, and reverse flow in guide vanes under reverse pump condition. The result shows that the unstable flow under small opening condition leads to an increase of turbine instability, and is one possible reason of the abnormal oscillation.

AB - In order to study the cause of Francis turbine abnormal oscillation under small opening condition, CFD method was adopted to analyze the flow filed and its impact on turbine stability. Numerical simulation was performed on the commercial CFD code FLUENT 6.2, using RNG - model. Through an effective validation of the computation result and detailed flow analysis, the paper showed vortices existed in runner and draft tube flow field, abnormal pressure distribution on blades and vanes, and reverse flow in guide vanes under reverse pump condition. The result shows that the unstable flow under small opening condition leads to an increase of turbine instability, and is one possible reason of the abnormal oscillation.

KW - CFD

KW - Francis Turbine

KW - Small opening condition

KW - Stability

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U2 - 10.1109/EMEIT.2011.6023004

DO - 10.1109/EMEIT.2011.6023004

M3 - 会议稿件

AN - SCOPUS:80053397026

SN - 9781612840857

T3 - Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011

SP - 1675

EP - 1678

BT - Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011

T2 - 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011

Y2 - 12 August 2011 through 14 August 2011

ER -

Yao Y, Wang H, Gong R, Wei X, Liu W. Numerical study of francis turbine flow field under small opening condition. In Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011. 2011. p. 1675-1678. 6023004. (Proceedings of 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011). doi: 10.1109/EMEIT.2011.6023004

Numerical study of francis turbine flow field under small opening condition

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