Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: Workshop on Steady Operation of Francis Turbines; Trondheim, NORWAY; Trondheim, NORWAY
Год издания: 2015
Идентификатор DOI: 10.1088/1742-6596/579/1/012004
Ключевые слова: Computational fluid dynamics, Cyclone separators, Flow separation, Francis turbines, Hydraulic turbines, Numerical methods, Numerical models, Reynolds number, Transients, Tubes (components), Best efficiency point, Detached eddy simulations, Draft tubes, Mean velocity components, Operation mode, Reynolds stress models, Velocity components, Water turbines, Turbulent flow
Аннотация: The paper presents numerical simulation of flow in Francis-99 water turbine under three operation modes: part load, best efficiency point and high load. Calculations were performed by means of Reynolds stress model and detached eddy simulation based on k-omega SST model. The paper focuses on the flows in the draft tube. The calculaПоказать полностьюted mean velocity components in the draft tube are in close agreement with experimental results. Calculated r.m.s velocity components agree with experimental pulsations qualitatively.
Журнал: FRANCIS-99 WORKSHOP 1: STEADY OPERATION OF FRANCIS TURBINES
Выпуск журнала: Vol. 579
ISSN журнала: 17426588
Место издания: BRISTOL
Издатель: IOP PUBLISHING LTD