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, flow characteristics of liquid sodium in the combined wick were simulated numerically using the finite volume method and Darcy model. The pressure drop, uniformity degree of velocity distribution, turbulent kinetic energy, and turbulent dissipation rate were analyzed according to the simulated results. The results show that the fluid velocity distribution in the combined wick gets more uneven......
are simplified into steady slot plane sources, the simulated indoor welding fume concentration values coincide well with the measurements and the relative error is 11.2%. Key words: computational fluid dynamics..., Hunan University of Technology, Zhuzhou 412008, China) Abstract: CFD (computational fluid dynamics) and site measurements were used to study the effects of some key parameters in the design......
of the electromagnetic wave propagation in human body. Investigation of performance of WCE communication system was carried out by studying electromagnetic (EM) wave propagation of the wireless capsule endoscopy transmission channel. Starting with a pair of antennas working in a human body mimic environment, the signal transmissions and attenuations were examined. The relationship between the signal attenuation......
Study on Electromagnetorheological Fluid Containing CuPc-Fe3O4Nanoparticles Composite姜德生摘 要:Electromagnetorheological (EMR) fluids containing CuPc-Fe3O4 nanoparetictes composite wereprepared and their properties were studied. The results show that AT of this kind of EMR fluids increases with theincrements of applied electric field, magnetic field......
multiple design cases. Key words: differential amplification; computational fluid dynamics (CFD); flow structure; centrifugal pump 1 Introduction Centrifugal pumps are widely applied in various liquid... demand in their performance, especially the requirement of low energy consumption, long lifetime, low noise and little vibration. It is the fluid behavior inside pumps that plays a predominant role......
between the hull and the wheel propellers while the AUV navigating in water, the computational fluid dynamics (CFD) method is used to simulate numerically the unsteady viscous flow around AUV...: computational fluid dynamics; sliding mesh; wheel propeller; autonomous underwater vehicle; viscous flow field 1 Introduction The autonomous underwater vehicles (AUVs) are promising for navy use because......
of Science and Technology Beijing摘 要:In this study, silicone-oil-basedγ-Fe2O3 magnetic fluid was successfully prepared by thermal oxidizing of Fe304 magnetic... was as surfactant for preparingγ-Fe2O3 magnetic fluid. It is found that the Fe304 nanoparticles surrounded by oleate ligands are not damaged during the thermal oxidizing. The shape of y-Fe2O3 magnetic......
December 2013 Abstract: For the flow field in a d50 mm hydrocyclone, numerical studies based on computational fluid dynamics (CFD) simulation and experimental studies based on particle image velocimetry (PIV... the overflow discharge rate. The change of underflow outlet diameter has no significant effect on axial and tangential velocities. Key words: hydrocyclone; computational fluid dynamics; particle image......
J. Cent. South Univ. (2016) 23: 3256-3261 DOI: 10.1007/s11771-016-3391-7 Coupled effects of stress damage and drilling fluid on strength of hard brittle shale WANG Wei(汪伟), DENG Jin-gen(邓金根), YU Bao... and concentration, which leads to stress damage phenomenon around the borehole. Consequently, drilling fluid will invade into formation along the tiny cracks induced by stress damage, and then weaken the strength......
; 文章编号:1672-7207(2019)04-0829-08 Study on unsteady fluid radial force in deep-sea lifting pump ZHAO He1, LIU Shaojun1, 2, HU Xiaozhou1 (1. School of Mechanical and Electrical Engineering... of deep-sea mining system, the internal flow is complex, and the radial force of the fluid can not be calculated theoretically by formulas, the experimental and numerical simulation methods were used......
