supported by National Natural Science Foundation of China,Key Scientific Research Project of Colleges and Universities in Henan Province (grant Nos.52375034,23ZX013);Department of Science and Technology of Henan Province (grant No.242102221013)。
Pipeline hydraulic transportation is extensively utilized across diverse sectors,with enhancing the performance of pipeline hydrodynamic transport and minimizing erosion wear on the pipeline walls being essential for ...
funded by National Key R&D Program of China(No.2022YFE0128300);National Natural Science Foundation of China(Grant Nos.52379114 and 52379113);Natural Science Foundation of Jiangsu Province,China(No.BK20211584);the Assistance Program for Future Outstanding Talents of the China University of Mining and Technology(No.2023WLKXJ187);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX23_2746).
This study aims to propose an empirical prediction model of hydraulic aperture of 2D rough fractures through numerical simulations by considering the influences of fracture length,average mechanical aperture,minimum m...
supported by the National Natural Science Foundation of China(Grant Nos.51465001 and 51905113);the Natural Science Foundation of Changsha City(Grant No.kq2208085)。
The hydraulic excitation acting on a hydro-turbine generator unit exhibits obvious non-stationary characteristics.In order to account for these characteristics,this study focuses on the non-stationary random vibration...
the financial support through Beijing Natural Science Foundation(Grant No.3212010);National Natural Science Foundation of China(Grant No.51875031).
The rotor is the most important component of rotating machinery,and the vibration produced by its mass unbalance has a serious influence on the secure and steady operation of the machine,so an effective online suppres...
Project supported by the National Natural Science Foundation of China(No.12002195);the Pujiang Project of Shanghai Science and Technology Commission of China(No.20PJ1404000)。
The coupling vibration of a hydraulic pipe system consisting of two pipes is studied.The pipes are installed in parallel and fixed at their ends,and are restrained by clips to one bracket at their middle points.The pi...
Bent-housing motor is the most widely used directional drilling tool,but it often encounters the problem of high friction when sliding drilling in horizontal wells.In this paper,a mathematical model is proposed to sim...
This work was supported by the Basic Scientific Research Fund of Heilongjiang Provincial Universities(2020-KYYWF-1042).
The bionic structure drip irrigation emitter(BSDE)is a new-type emitter,by which better hydraulic performances can be obtained.In the present work,twenty-five sets of orthogonal test schemes were implemented to analyz...
supported by the National Natural Science Foundation of China(Grants Nos.41831289,41877191,42072276).
The groundwater flow in natural aquifers can change from the Darcy flow to the non-Darcian flow due to a variety of causes,such as the increase of the Reynolds number in the highly permeable media or the decrease of t...
A well-known cornerstone in fluid mechanics is the equations that relate the friction factor to the Reynolds number obtained from the measurements in cylindrical cross-sectional tubes. The extension of these equations...
In the present study,hydraulic and thermal behavior of an automatic transmission nano-fluid(ATNF) inside a tube with a twisted tape has been investigated.The heat transfer improvement and pressure drop of transmission...