Results 81 to 90 of about 254,963 (201)
Applied SciencesThe reverse circulation pneumatic down-the-hole (DTH) drilling system employs percussive drilling to achieve high efficiency and strong adaptability across diverse rock formations. However, its cutting removal efficiency remains suboptimal.
Kunkun Li +4 more
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Shock accelerated vortex ring [PDF]
, 2009 The interaction of a shock wave with a spherical density inhomogeneity leads to the development of a vortex ring through the impulsive deposition of baroclinic vorticity.
Anderson, M. +5 more
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Lagrangian study of transport and mixing in a mesoscale eddy street
, 2011 We use dynamical systems approach and Lagrangian tools to study surface transport and mixing of water masses in a selected coastal region of the Japan Sea with moving mesoscale eddies associated with the Primorskoye Current.
Budyansky, M. V. +3 more
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Influence of Reaming While Drilling on the Circulation of Drilling Fluid
Shiyou jixie, 2019 The operation of reaming while drilling will have an impact on the circulation of drilling fluids, but there is still no relevant research in China. To address the problem, numerical simulation based on computational fluid dynamics was carried out to ...
Cheng Guangming, Tian Zongzheng, He Tong
doaj
ActuatorsControl valves in nuclear systems operate under high-pressure differentials generating intense transient fluid forces that induce destructive structural vibrations, risking resonance and the valve stem fracture.
Lingxia Yang, Shuxun Li, Jianjun Hou
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Reverse Circulation Drilling Method Based on a Supersonic Nozzle for Dust Control
Applied Sciences, 2016 To reduce dust generated from drilling processes, a reverse circulation drilling method based on a supersonic nozzle is proposed. The suction performance is evaluated by the entrainment ratio.
Dongyu Wu +6 more
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Stochastic Structural Stability Theory applied to roll/streak formation in boundary layer shear flow
, 2010 Stochastic Structural Stability Theory (SSST) provides an autonomous, deterministic, nonlinear dynamical system for evolving the statistical mean state of a turbulent system.
Alfredsson +3 more
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Cell-Driven Fluid Dynamics: A Physical Model of Active Systemic Circulation
Active fluid circulation and transport are key functions of living organisms, which drive efficient delivery of oxygen and nutrients to various physiological compartments. Because fluid circulation occurs in a network, the systemic flux and pressure are not simple outcomes of any given component. Rather, they are emergent properties of network elements
Wu, Yufei +2 more
openaire +2 more sources
Nature CommunicationsNatural depressions on continental margins termed minibasins trap turbidity currents, a class of sediment-laden seafloor density driven flow. These currents are the primary downslope vectors for clastic sediment, particulate organic carbon, and ...
J. Kevin Reece +2 more
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Investigation of the geothermal system in region of Selime (Turkey) by resistivity methods
Geofísica InternacionalThe Anatolian platform continues its development with highly complex tectonic activities in Central Anatolia, known as tectonic deformation. In addition to faulting due to the plate movements, the fluid dynamics in the underground and the thermal cycle ...
Tekin Yeken +3 more
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