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Numerical investigation of flow structure and pressure pulsation in the Francis-99 turbine during startup
Автор | Minakov, A. V. | |
Автор | Sentyabov, A. V. | |
Автор | Platonov, D. V. | |
Дата внесения | 2018-02-07T07:31:13Z | |
Дата, когда ресурс стал доступен | 2018-02-07T07:31:13Z | |
Дата публикации | 2017-01 | |
Библиографическое описание | Minakov, A. V. Numerical investigation of flow structure and pressure pulsation in the Francis-99 turbine during startup [Текст] / A. V. Minakov, A. V. Sentyabov, D. V. Platonov // Journal of Physics: Conference Series. — 2017. — Т. 782 (№ 1). | |
ISSN | 17426588 | |
URI (для ссылок/цитирований) | http://iopscience.iop.org/article/10.1088/1742-6596/782/1/012004/meta | |
URI (для ссылок/цитирований) | https://elib.sfu-kras.ru/handle/2311/70006 | |
Аннотация | We performed numerical simulation of flow in a laboratory model of a Francis hydroturbine at startup regimes. Numerical technique for calculating of low frequency pressure pulsations in a water turbine is based on the use of DES (k-ω Shear Stress Transport) turbulence model and the approach of "frozen rotor". The structure of the flow behind the runner of turbine was analysed. Shows the effect of flow structure on the frequency and intensity of non-stationary processes in the flow path. Two version of the inlet boundary conditions were considered. The first one corresponded measured time dependence of the discharge. Comparison of the calculation results with the experimental data shows the considerable delay of the discharge in this calculation. Second version corresponded linear approximation of time dependence of the discharge. This calculation shows good agreement with experimental results. | |
Тема | CFD | |
Тема | Francis turbine | |
Тема | LES | |
Тема | numerical simulation | |
Тема | pressure pulsation | |
Тема | RANS and DES models | |
Тема | the precession of the vortex rope | |
Тема | turbulence | |
Название | Numerical investigation of flow structure and pressure pulsation in the Francis-99 turbine during startup | |
Тип | Journal Article | |
Тип | Journal Article Preprint | |
ГРНТИ | 44.35 | |
Дата обновления | 2018-02-07T07:31:13Z | |
DOI | 10.1088/1742-6596/782/1/012004 | |
Институт | Институт инженерной физики и радиоэлектроники | |
Подразделение | Научно-исследовательская часть | |
Подразделение | Кафедра теплофизики | |
Журнал | Journal of Physics: Conference Series | |
Квартиль журнала в Scopus | Q3 |