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 - Couverture souple

Galván, Sergio; Reggio, Marcelo; Guibault, Francois

 
9783843359245: 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
Couverture souple
ISBN 10 : 3843359245 ISBN 13 : 9783843359245
Editeur : LAP LAMBERT Academic Publishing, 2010

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.

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Présentation de l'éditeur

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.

Biographie de l'auteur

Sergio Galván completed his M.Sc. at the Instituto Politécnico Nacional of México in 1998 and his Ph.D at the École Polytechnique de Montréal, 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 Sán Nicolás de Hidalgo in México.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3843359245
ISBN 13 
9783843359245
Reliure
Broché
Nombre de pages
260
Coordonnées du fabricant
non disponible
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