Numerical simulations of the mean wind speeds and turbulence intensities over simplified gorges using the SST k-ω turbulence model

P Hu, Y Li, Y Han, SCS Cai, X Xu - Engineering Applications of …, 2016 - Taylor & Francis
Numerical studies on the wind characteristics over gorge and valley terrains are very rare.
Some simplified gorge terrains with different included angles and different terrain heights …

Computational and experimental study on the water-jet pump performance

AAA Sheha, M Nasr, MA Hosien… - Journal of Applied Fluid …, 2018 - jafmonline.net
The effect of operational and geometrical parameters on the jet pump efficiency were
determined experimentally and numerically. Numerical investigation was held firstly to …

Influence of critical wall roughness on the performance of double-channel sewage pump

X He, Y Zhang, C Wang, C Zhang, L Cheng, K Chen… - Energies, 2020 - mdpi.com
The numerical method on a double-channel sewage pump was studied, while the
corresponding experimental result was also provided. On this basis, the influence of wall …

Investigation into influence of wall roughness on the hydraulic characteristics of an axial flow pump as turbine

K Kan, Q Zhang, Y Zheng, H Xu, Z Xu, J Zhai… - Sustainability, 2022 - mdpi.com
Pump as turbine (PAT) is a factual alternative for electricity generation in rural and remote
areas where insufficient or inconsistent water flows pose a threat to local energy demand …

Influence of wall roughness on cavitation performance of centrifugal pump

W Xu, X He, X Hou, Z Huang, W Wang - Journal of the Brazilian Society of …, 2021 - Springer
Cavitation is a phenomenon that occurs easily during rotation of fluid machinery and can
decrease the performance of a pump, thereby resulting in damage to flow passage …

Analysis of the impeller's tip clearance size on the operating characteristics of the underwater vehicle with a new high-speed water jet propulsion pump

Y Lu, X Wang, H Liu, F Zhou, T Tang, X Lai - Ocean Engineering, 2021 - Elsevier
To make up for the lack of study on high-speed water jet propulsion pump tip clearances, a
newly developed water jet pump system close to the critical specific speed nsc has been …

Analysis of a Jet Pump Performance under Different Primary Nozzle‎ Positions and Inlet Pressures using two Approaches: One Dimensional‎ Analytical Model and …

W Orozco Murillo, JA Palacio-Fernande… - Journal of Applied and …, 2020 - jacm.scu.ac.ir
A jet pump operates under the Venturi effect, where a fluid enters through a primary nozzle
and, when passing through a convergent-divergent nozzle, it reaches supersonic conditions …

Structure size optimization and internal flow field analysis of a new jet pump based on the taguchi method and numerical simulation

Z Wang, Y Lei, Z Wu, J Wu, M Zhang, R Liao - Processes, 2023 - mdpi.com
Interlayer contradiction (high-pressure oil that prevents low-pressure oil from being
extracted) has always been the main factor affecting the oil-recovery efficiency of the many …

Heuristic optimization of impeller sidewall gaps-based on the bees algorithm for a centrifugal blood pump by CFD

A Onder, O Incebay, MA Sen… - … Journal of Artificial …, 2021 - journals.sagepub.com
Optimization studies on blood pumps that require complex designs are gradually increasing
in number. The essential design criteria of centrifugal blood pump are minimum shear stress …

Comparison of the effects of surface roughness and confinement on rotor–stator cavity flow

M Özkan, PJ Thomas, AJ Cooper… - … of Computational Fluid …, 2017 - Taylor & Francis
Results of a computational study are discussed which investigate roughness-induced and
geometry-induced (confinement) effects on the steady-state velocity components in 3-D …