Results 41 to 50 of about 1,634,384 (168)

Research on the Characteristics and Mechanisms of Supercritical CO2 Displacement of Shale Oil Under Nanoscale Confinement

open access: yesEnergy Science & Engineering
Shale reservoirs, characterized by compact pores, poor physical properties, and high organic matter content, exhibit significant differences in microscopic flow behavior compared to conventional oil reservoirs.
Wei Dang   +4 more
doaj   +1 more source

Flow characteristics of caved ore and rock in the multiple draw-point condition

open access: yes工程科学学报, 2015
Based on the particle flow theory and PFC3D code,a draw model was constructed to research the flow characteristics of caved ore and rock in the multiple draw-point condition and visualize the form-changing process of the isolated extraction zone(IEZ) and
SUN Hao   +3 more
doaj   +1 more source

Research on swimming hydrodynamics based on a three‐dimensional high‐precision fish model

open access: yesRiver
Fish swimming hydrodynamics serves as a critical foundation for aquatic ecological conservation, with recent research extending from 2D to 3D perspectives.
Lin Sun   +4 more
doaj   +1 more source

Influencing factors on the flow characteristics of an isolated extraction zone in caving mining

open access: yes工程科学学报, 2015
Based on the particle flow theory and PFC3D code, a draw model with the meso-mechanical properties of ore granular media was constructed to study influencing factors on the flow characteristics of an isolated extraction zone in caving mining.
SUN Hao   +4 more
doaj   +1 more source

Characteristic Bending in Incompressible Flows

open access: yes
A B S T R A C TWe present the Characteristic Bending (CB) method, a general framework for advecting quantities under incompressible velocity fields. The method builds on standard semi-Lagrangian advection by interpreting the backward-in-time characteristic reconstruction as the construction of a reference map, a diffeomorphism between the current and ...
Matthew Blomquist   +2 more
openaire   +2 more sources

DEVELOPMENT OF FULLY AUTOMATED TEST BED FOR MEASURING STATIC CHARACTERISTICS OF DIRECTIONAL HYDRAULIC VALVES [PDF]

open access: yesProceedings on Engineering Sciences, 2019
Directional hydraulic valves are one of the basic and very important components of a hydraulic system as they control the direction and quantity of the flow of hydraulic fluid.
Vito TIČ, Jörg EDLER
doaj   +1 more source

Effects of Non-Uniform Center-Flow Distribution and Cavitation on Continuous-Type Pintle Injectors

open access: yesAerospace
In this paper, the flow characteristics of a continuous-type liquid–liquid pintle injector are described, focusing on the differential impact of a non-uniform center-flow distribution on single- and bi-injection methodologies as well as the cavitation ...
Dongwoo Choi, Seunghyeon Lee, Kyubok Ahn
doaj   +1 more source

Study on the Design of the Gear Pair and Flow Characteristics of Circular-Arc Gear Pumps

open access: yesApplied Sciences
Compared with traditional gear pumps, circular-arc gear pumps have the advantages of silence and small flow pulsation, but the theory of design is underdeveloped.
Geqiang Li   +5 more
doaj   +1 more source

Numerical simulation of tidal bore based on CFD method

open access: yesShuili Shuiyun Gongcheng Xuebao, 2019
The tidal bore is a kind of nonlinear strong discontinuous flow that has great impact on wading structures. The small-scale fine simulation of the tidal bore is the premise for analyzing the structural stability of the wading structures under tidal ...
QI Lan   +3 more
doaj   +1 more source

FLOW CHARACTERISTICS OF SKIMMING FLOW IN A STEPPED CHANNEL

open access: yesPROCEEDINGS OF HYDRAULIC ENGINEERING, 2004
Recently, research onto the hydraulics of stepped chutes was driven by needs for better design guidelines (OHTSU and YASUDA 1997, CHANSON and TOOMBES 2002, BOES and HAGER 2003). Although stepped channel flows are characterized by intense turbulence and strong flow aeration, most studies did not investigate the turbulence characteristics. In this study,
YASUDA, Youichi   +2 more
openaire   +2 more sources

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