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Alessandro Capone, Fabio Di Felice and Francisco Alves Pereira
A turbulent channel flow laden with elongated, fiber-like particles is investigated experimentally by optical techniques. The flow-particle inter-coupling is analyzed in the case of particles with an aspect ratio of 40 and 80, at two volume fractions, 10...
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Weidong Cao, He Wang and Jian Tang
Guide vane submersible centrifugal pumps are a kind of submersible pump, and the fluid inside the pump is often mixed with gravel and other impurities during operation, affecting the pump?s operating efficiency and life expectancy. However, past studies ...
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Lianjun Chen, Yang Zhang, Pengcheng Li and Gang Pan
This paper aims to reveal the motion law and collision behaviors of shotcrete particle flow jets. A physical model of the jet flow field composed of a nozzle structure and jet area was constructed and meshes with various sizes were used to mesh the nozzl...
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Xuan Zhao, Guoqiang Gao, Minshun Wan and Juchuan Dai
An accurate formula for calculating the pressure loss in concrete pumping plays a significant guiding role in the design and service process of pump trucks. Based on the flow characteristics of concrete pumping, a straight pipe one-dimensional model for ...
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Xiaojie Jiao, Cheng Cheng, Yubing Song, Gang Wang and Linjuan He
The rock deformation and failure characteristics and mechanisms are very important for stability evaluation and hazard control in rock engineering. The process of rock deformation and failure is often accompanied by temperature changes. It is of great si...
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Bin Ma, Xinchao Ding and Xingzhou Chen
The excavation-unloading damage effects of western high-geostress slopes on rock were explored by testing the pre-peak confining pressure unloading sandstone reloading mechanical properties. The deformation and failure mechanisms were studied from a meso...
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Bingyao Huang, Haodong Zhang, Zundi Liu, Xiaoyuan Yang, Wei Li and Yuyang Li
This paper investigates the internal flow fields in suspended binary solution droplets during combustion and discusses the influence of flow velocity on mass transfer and content gradient formation in the binary droplets.
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Marco Castaldi, Ignacio Mayo, Jacques Demolis and Frank Eulitz
Helicopter and turboprop engines are susceptible to the ingestion of debris and other foreign objects, especially during take-off, landing, and hover. To avoid deleterious effects, filters such as Inlet Particle Separators (IPS) can be installed. However...
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Shunjun Hong and Xiaozhou Hu
A key piece of equipment in deep-sea mineral particle transportation systems, the deep-sea mining pump can be affected by factors such as different mineral particle parameters as well as its operating conditions. In this study, the influence of different...
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Mitja ?trakl, Matja? Hriber?ek, Jana Wedel, Paul Steinmann and Jure Ravnik
In this paper, forces and torques on solid, non-spherical, orthotropic particles in Stokes flow are investigated by using a numerical approach on the basis of the Boundary Element Method. Different flow patterns around a particle are considered, taking i...
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Chao Ning, Yalin Li, Ping Huang, Hongbo Shi and Haichao Sun
Centrifugal pumps are the critical components in deep-sea mining. In order to investigate the particle motion in the curved channel of the impeller, three different types of curvature conform to blade profile to simplify the impeller design of pumps. A n...
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Hongbo Shi, Xikun Wang, Qingjiang Xiang, Gonghe Zhang and Lin Xue
In the marine fire suppression system, continuous delivery of dry chemical powder to the fire source with long powder discharge range and high dispersion concentration is essential. The work is devoted to experimental and numerical studies of the flow ch...
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Chun-Yuan Lin, Ching-Jer Huang and Tai-Wen Hsu
Unsteady two-dimensional Reynolds Averaged Navier-Stokes (RANS) equations coupled with the ??-??
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turbulence model was developed to simulate the viscous flow field near seawalls. The complex free-surface configuration was captured using the particl...
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Huan Dai, Hao Li and Yan Li
The research on the fragmentation mechanism of seabed minerals under high ambient pressure significantly contributes to the exploitation of seafloor massive sulfides (SMS). In this paper, the uniaxial compressive strength (UCS) test and triaxial compress...
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Hao Wu, Meng Liu, Youzhi Mi, Jun Wang and Menglei Guo
The dust storm on the surface of Mars is a severe threat to Mars exploration missions. Taking adequate measures to avoid the impact of the harsh wind-blown dust environment is indispensable. Ground simulation of the Martian high-speed windblown dust envi...
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Sergey Kiselev, Vladimir Kiselev and Viktor Zaikovskii
A simplified 2D model for calculating two-phase gas?particle flows in a slot space has been developed. The model can be used for fast calculation and estimation of supersonic-flow parameters in the slot space. Using this model, a numerical simulation of ...
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Wenqian Lin, Liang Li and Yelong Wang
Particle settlement and pressure drop in a gas?solid two-phase flow in a pipe with a circular cross-section are studied at mixture inlet velocities (V) ranging from 1 m/s to 30 m/s, particle volume concentrations (as) ranging from 1% to 20%, particle mas...
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Roman Pöschl
The next generation of collider detectors will make full use of Particle Flow Algorithms, requiring high-precision tracking and full imaging calorimeters. The latter, thanks to granularity improvements by two to three orders of magnitude compared to exis...
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Qingtong Shi, Bo Ai, Yubo Wen, Wenjun Feng, Chenxi Yang and Hongchun Zhu
In three-dimensional (3D) digital Earth environment, there are many problems when using the existing methods to express the ocean current, such as uneven distribution of seed points, density leap in scale change and messy visualization. In this paper, a ...
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Salman A. M. Fadl-Elmola, Cristian Moisescu Ciocan and Ioana Popescu
Smoothed particle hydrodynamics (SPH) is a Lagrangian mesh free particle method which has been developed and widely applied to different areas in engineering. Recently, the SPH method has also been used to solve the shallow water equations, resulting in ...
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