Scipediacontent: Scipediacontent moved page Draft Content 668863411 to Chen et al 2018f

2021-02-15T09:14:14Z

Scipediacontent moved page Draft Content 668863411 to Chen et al 2018f

Scipediacontent: Created page with " == Abstract == Transient analysis in diversion pipelines should be performed to ensure the safety of a hydropower system. After the establishment of a three-dimensional (3D)..."

2021-02-15T09:14:11Z

Created page with " == Abstract == Transient analysis in diversion pipelines should be performed to ensure the safety of a hydropower system. After the establishment of a three-dimensional (3D)..."

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== Abstract ==

Transient analysis in diversion pipelines should be performed to ensure the safety of a hydropower system. After the establishment of a three-dimensional (3D) geometric model from the part upstream reservoir to the diversion pipeline end in a pumped storage hydropower (PSH) station, the hydraulic characteristics of the diversion system were solved by Reynold average Navier&ndash

Stokes (RANS) equations based on a volume of fluid (VOF) method under the condition of simultaneous load rejection of two units. The variations of the water level in the surge tank, the pressure at the pipeline end, and the velocity on the different pipeline sections with time were obtained through the calculation. The numerical results showed that the water level changing in the surge tank simulated by VOF was consistent with the field test data. These results also showed that a self-excited spiral flow occurs in the pipeline when the flow at the end of the pipeline was reduced to zero and its intensity decreased with the flow energy exhaustion. The discovery of the self-excited spiral flow in the study may provide a new explanation for the pressure wave attenuation mechanism.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_668863411-beopen685-4603-document.pdf</pdf>

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.3390/w11010044 http://dx.doi.org/10.3390/w11010044] under the license https://creativecommons.org/licenses/by

* [http://dx.doi.org/10.3390/w11010044 http://dx.doi.org/10.3390/w11010044] under the license http://creativecommons.org/licenses/by/3.0/

* [https://www.mdpi.com/2073-4441/11/1/44/pdf https://www.mdpi.com/2073-4441/11/1/44/pdf] under the license https://creativecommons.org/licenses/by/4.0

* [http://www.mdpi.com/2073-4441/11/1/44 http://www.mdpi.com/2073-4441/11/1/44],
: [https://doaj.org/toc/2073-4441 https://doaj.org/toc/2073-4441] under the license cc-by

* [http://www.mdpi.com/2073-4441/11/1/44/pdf http://www.mdpi.com/2073-4441/11/1/44/pdf],
: [http://dx.doi.org/10.3390/w11010044 http://dx.doi.org/10.3390/w11010044]

* [https://www.mdpi.com/2073-4441/11/1/44 https://www.mdpi.com/2073-4441/11/1/44],
: [https://www.mdpi.com/2073-4441/11/1/44/pdf https://www.mdpi.com/2073-4441/11/1/44/pdf],
: [https://academic.microsoft.com/#/detail/2908063594 https://academic.microsoft.com/#/detail/2908063594] under the license https://creativecommons.org/licenses/by/4.0/

← Older revision	Revision as of 09:14, 15 February 2021
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Chen et al 2018f - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 668863411 to Chen et al 2018f

Scipediacontent: Created page with " == Abstract == Transient analysis in diversion pipelines should be performed to ensure the safety of a hydropower system. After the establishment of a three-dimensional (3D)..."