Results 11 to 20 of about 682,069 (145)

Performance mapping of modular annular jet pumps for slurry transport—A mixture model approach

open access: yesChemical Engineering Journal Advances
This study develops a CFD-based performance-mapping framework for modular Annular Jet Pumps under slurry transport conditions, focusing on how geometric and operating parameters govern hydraulic performance, turbulence, and erosion risk.
Sadia Riaz   +2 more
doaj   +3 more sources

Jet mixing of water in crude oil pipelines [PDF]

open access: yes, 1990
The jet mixing of water in crude oil pipelines by single nozzle and multi-nozzle mixers was studied by dividing the mixing domain into to three regions. the penetration. near field and farfield regions.
Fernando, L. M.
core   +7 more sources

Modulation of annular fluid enhanced self-excited pulsed water jet and its coal breaking characteristics

open access: yesMeitan xuebao, 2023
There are some bottleneck problems in the pressure relief and antireflection technology of submerged water jet in a downward hole, such as weak impact force, low coal breaking efficiency, less coal cutting and poor adaptability.
Yanwei LIU   +8 more
doaj   +1 more source

Experimental study of controlling tip clearance flow in a pump-jet propulsor

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveThis paper aims to suppress the adverse effects of tip clearance flow on the hydrodynamic performance and unsteady excitation force of a pump-jet propulsor. MethodAs for the pre-swirl stator pump-jet propulsor, an annular flexible seal structure
Ruilin HAN   +5 more
doaj   +1 more source

Large eddy simulation of fuel injection and spray combustion in an engine environment [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Large eddy simulation of spray combustion in an HSDI engine is carried out in this thesis.
Jaguś, Krzysztof
core   +7 more sources

Cross Flow Analysis over the Jet Pumps of a BWR-5 Reactor

open access: yesScience and Technology of Nuclear Installations, 2021
The recirculation system of a BWR-5 has 20 jet pumps. They are submerged in water in the cylindrical annular zone of the reactor. Their main function is the development of a forcing flow through the nuclear core.
G. Soto-Mendoza   +6 more
doaj   +1 more source

A 50 kW Liquid-Lithium Target for BNCT and Material-Science Applications [PDF]

open access: yesEPJ Web of Conferences, 2020
A compact Liquid Lithium Target (LiLiT) has been operating at SARAF for several years with beam power of several kW (1.9-2.5 MeV, up to 2 mA). When bombarding the lithium with low energy protons neutrons are generated. The neutron source, mainly used for
Paul Michael   +10 more
doaj   +1 more source

Influence of Turbulence Models on the Flow Field Simulation of Annular Jet Pump [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban
To reflect the influence of intense momentum exchange of the fluid in the annular jet pump suction chamber accurately, a comparison calculation using different turbulence models and wall functions was conducted, and hydraulic experiments were carried out
XIANG Weining   +3 more
doaj   +1 more source

Numerical simulation of flow field in water-pump sump and inlet suction pipe [PDF]

open access: yes, 2010
There are several important considerations in the design of a suction supply sump. It is imperative that the amount of turbulence and entrained air be kept to a minimum.
BOIS, Gérard   +2 more
core   +1 more source

Computational fluid dynamics analysis and design optimization of a porous annular powder‐liquid mixer

open access: yesEnergy Science & Engineering, 2020
An annular powder‐liquid mixer is a new type of jet pump used to mix powder. This mixer is mainly used to mix fracturing fluids in oil and natural gas exploitation processes.
Long Feng   +4 more
doaj   +1 more source

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