INLET VELOCITY PROFILE OPTIMIZATION OF THE TURBINE 99 DRAFT TUBE | A quantitative and qualitative study of the flow characteristics through the hydraulic turbine draft tube

Publisher

LAP LAMBERT Academic Publishing

Publication Date

2010

Language

English

ISBN 10

3843359245

ISBN 13

9783843359245

Binding

Taschenbuch

Condition

Neu

Dimensions

Weight

405 grams

Seller catalogs

B�cher

About this title

Synopsis

In recent years, numerical and experimental investigations on the draft tube performance have confirmed the importance of the inlet swirling flow created by the runner vanes. The results indicate that it is still a challenge to get the optimal flow distribution at the draft tube inlet which gives the best machine performance over a range of operation points. Consequently, there is a need to adjust the runner-draft tube coupling to minimize the losses arising from the inlet flow distribution. This work focuses on establishing an automatic optimization method to improve the swirling flow characteristics at the draft tube inlet. The coupling of iSIGHT�, FLUENT� and MATLAB� commercial softwares has been performed to determine the best inlet flow shape which leads to increase overall machine performance. It is expected that a properly modeled inlet velocity profile can suppress or mitigate the undesirable draft tube flow characteristics such as secondary flow, irregular evolution and excessive velocity through this important component of the turbine. This book is a must for graduate students, researchers and implementers whose work involves the design of hydraulic turbines.

About the Author

Sergio Galv�n completed his M.Sc. at the Instituto Polit�cnico Nacional of M�xico in 1998 and his Ph.D at the �cole Polytechnique de Montr�al, Canada in 2007. He has worked as mechanical engineering applying CFD to industrial flows. Currently he works as Professor and Researcher at the Universidad Michoacana de S�n Nicol�s de Hidalgo in M�xico.

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