Zobrazeno 1 - 10
of 3 834
pro vyhledávání: '"transient flow"'
Publikováno v:
Water Practice and Technology, Vol 19, Iss 6, Pp 2333-2351 (2024)
Water hammer refers to pressure fluctuations caused by changes in fluid speed in hydraulic systems. This research proposes a model using the MacCormack method to study and control water hammer, specifically focusing on managing valve closure to reduc
Externí odkaz:
https://doaj.org/article/087974371fc24a529f599ec60e352f09
Publikováno v:
Water Practice and Technology, Vol 19, Iss 6, Pp 2399-2418 (2024)
The present work investigated the pressure changes caused by water hammer through the georeferenced model to investigate the stress impact on water transmission lines. The results of the hydraulic analysis of the research showed that the sudden stop
Externí odkaz:
https://doaj.org/article/3c3ac8a89b154559a67fa80c6dfe0dbb
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract In the process of coal-filling mining, the gangue fly-ash slurry (GFS) needs to be transported over a long distance to reach the gobs. The abrupt closure of the valve during the transportation of GFS can result in a water hammer that signifi
Externí odkaz:
https://doaj.org/article/c0ac63775d754c4c9afe3f31a11eb17d
Publikováno v:
Case Studies in Thermal Engineering, Vol 60, Iss , Pp 104830- (2024)
The transport of heat in an unsteady flow of nanofluid has been discussed in this paper. The flow is maintained over a non-flat, variably porous, and moving sheet in the present simulation. Moreover, the sheet has both constant temperature and nanopa
Externí odkaz:
https://doaj.org/article/d148de02350540e58716c9e24296ebb9
Autor:
Abdelouaheb Toumi, Fateh Sekiou
Publikováno v:
Aqua, Vol 73, Iss 2, Pp 200-216 (2024)
Finding the most suitable closing law is essential to decrease the shock wave pressure caused by transient flow and minimize the potential damage to equipment. The closure of a valve can occur instantly, rapidly, or gradually, and the appropriate law
Externí odkaz:
https://doaj.org/article/24b5e5f34118495d87a242aa743ecc2e
Publikováno v:
Petroleum Exploration and Development, Vol 51, Iss 1, Pp 172-179 (2024)
Considering the phase behaviors in condensate gas reservoirs and the oil-gas two-phase linear flow and boundary-dominated flow in the reservoir, a method for predicting the relationship between oil saturation and pressure in the full-path of tight co
Externí odkaz:
https://doaj.org/article/5e88b6c426fe42f8be1c8d17b3be2182
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
Transient flow frequently occurs in water delivery systems, including various flow regimes such as water hammer, free surface flow, and slug flow. Current models often oversimplify these phenomena by simulating single-phase flow or using simplistic o
Externí odkaz:
https://doaj.org/article/6389a238d4af4c6a8186c6196116243a
Autor:
Boran Zhang, Wuyi Wan, Yuhang Wang, Qihua Ran, Xiaoyi Chen, Yue Fang, Saiyu Yuan, Huiming Zhang
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
ABSTRACTControlling pressure impact of water hammer is an important guarantee for safe and stable running of pipeline systems. Previously, we proposed a spring self-adaptive auxiliary control (SAC) system to improve the pressure control ability of a
Externí odkaz:
https://doaj.org/article/e34e17c0168f482fb05d72876d73a8e1
Publikováno v:
Journal of Asian Architecture and Building Engineering, Vol 23, Iss 1, Pp 294-312 (2024)
The Fuzzy C-means (FCM) method with Fourier coefficient-based distance was firstly used to construct the vortex features and analyze the large-scale unsteady flow pattern around the building by the transient ensemble velocity magnitude and Q criterio
Externí odkaz:
https://doaj.org/article/471b5328264c481ebf2974b0bcd2d1d6
Publikováno v:
Propulsion and Power Research, Vol 12, Iss 4, Pp 568-583 (2023)
It is increasingly apparent that the inclusion of mass transfer aspects, together with certain thermal conditions, in the momentum and energy equations governing MHD flows leads to a numbers of real life applications. Keeping this in view, we have at
Externí odkaz:
https://doaj.org/article/b54be059a9b4470c95bd30e67da31cbc