Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Dongtao Ji"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 8, p 1512 (2023)
This study aimed to reveal the energy loss characteristics of each part of the shaft tubular pump device (STPD) under stall conditions. Numerical simulations were conducted by using the SST k-ω turbulence model with curvature correction, and the rel
Externí odkaz:
https://doaj.org/article/a785fd4c3c1a4cd98c1dd5164bfe084b
Publikováno v:
Entropy, Vol 25, Iss 7, p 995 (2023)
The unstable flow of a shaft tubular pump device (STPD) leads to energy loss, thereby reducing its efficiency. The aim of this study is to investigate the distribution pattern of energy loss in STPDs. This paper reveals that the two components with t
Externí odkaz:
https://doaj.org/article/103b6f9d190740838bbf9943a81f5d9c
Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
To improve the efficiency of low-head pump device in the large-discharge and low-head domain, the hydraulic characteristics of vertical axial flow pump devices with different guide vane inlet angles were studied using computational fluid dynamics (CF
Externí odkaz:
https://doaj.org/article/161c76aaa84a4112aeb988c3fbba5933
Publikováno v:
Energies, Vol 15, Iss 15, p 5371 (2022)
The rotation speed of water at the inlet of the low hump outlet conduit has a great effect on its hydraulic performance. Therefore, the influence of different inlet water rotation speeds on hydraulic loss and flow pattern of low hump outlet conduit i
Externí odkaz:
https://doaj.org/article/79399346476240b59c67aad01863f7ee
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
In engineering, the highest operating head of the pumping station is usually controlled to be slightly lower than the lowest saddle bottom head of the axial-flow pump. However, in the practical operation, it is found that the highest operating head o
Externí odkaz:
https://doaj.org/article/015978abdccb4d28954a8a5e58afb9b6
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 6, p 750 (2022)
For pumping station projects in plain areas, shaft tubular pump devices are often used due to the low head. In actual operation, the common working range of the pump device is generally 0.8 Qbep~1.2 Qbep. Therefore, it is of great significance to stu
Externí odkaz:
https://doaj.org/article/98af9d4e72a94b51a719d776b3880735
Publikováno v:
Shock and Vibration, Vol 2020 (2020)
Axial flow pump has been widely used in hydraulic engineering, agriculture engineering, water supply and sewerage works, and shipbuilding industry. In order to improve the hydraulic performance of pump under off-design working conditions, the influen
Externí odkaz:
https://doaj.org/article/2c7b3afb4fdd40308579c11c4581a9b0
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 1, p 8 (2021)
The shaft front-positioned tubular pump device has been widely used in practical engineering, but the shaft rear-positioned pump device is rarely used due to its low efficiency. To investigate the effect of the shaft position on the performance of a
Externí odkaz:
https://doaj.org/article/7b10fe9c7cc84ac2b66fe0df5c2a7137
Publikováno v:
Entropy; Volume 25; Issue 7; Pages: 995
The unstable flow of a shaft tubular pump device (STPD) leads to energy loss, thereby reducing its efficiency. The aim of this study is to investigate the distribution pattern of energy loss in STPDs. This paper reveals that the two components with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::e74c21a25c656a32159629d23ba08d14
Publikováno v:
Journal of Hydraulic Research. 60:515-526
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::843a10b536feff24ddde2c0fa3e6b142
https://doi.org/10.1080/00221686.2021.2001593
https://doi.org/10.1080/00221686.2021.2001593