Results 51 to 60 of about 255,664 (201)
Design optimization of a coal seam annular air reverse circulation bit
Energy Science & Engineering, 2023 Reverse circulation (RC) drilling technology enables the rapid acquisition of coal seam samples, which is crucial in accurately measuring gas content. In addition, the design of the drill bit plays a key role in RC sampling. In this study, the turbulence
Demin Chen +3 more
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Optimization of Meridional Flow Channel Design of Pump Impeller
International Journal of Rotating Machinery, 2004 The meridional flow channel design of a pump impeller affects its performance. However, since so many design parameters exist, a new design method is proposed in which a meridional and blade-to-blade flow channel is designed by the parallel use of the ...
Sunao Miyauchi +3 more
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Starting flow through nozzles with temporally variable exit diameter [PDF]
, 2005 Starting flow through a nozzle or orifice typically results in the transient formation of a leading vortex ring and trailing jet. Experiments are conducted to investigate the dynamics of this process in the case of a temporally variable nozzle exit ...
Dabiri, John O., Gharib, Morteza
core
The helicity and vorticity of liquid crystal flows
, 2010 We present explicit expressions of the helicity conservation in nematic liquid crystal flows, for both the Ericksen-Leslie and Landau-de Gennes theories.
Gay-Balmaz, François, Tronci, Cesare
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Delay of vortex ring pinchoff by an imposed bulk counterflow [PDF]
, 2004 The Kelvin–Benjamin variational principle has been previously used to predict that vortex ring pinchoff can be delayed if the energy of the leading vortex ring is decreased during formation and/or the energy delivered by the vortex generator is increased.
Dabiri, John O., Gharib, Morteza
core +1 more source
Study on the internal two-phase flow of the inverted-umbrella aerator
Advances in Mechanical Engineering, 2019 In order to reveal the gas–liquid two-phase flow pattern of inverted-umbrella aerator, the high-speed photography technology, particle image velocimetry, and Volume of Fluid model are employed to capture the free-surface dynamics and velocity ...
Liang Dong +4 more
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Cerebrospinal fluid dynamics and intracranial pressure elevation in neurological diseases
Fluids and Barriers of the CNS, 2019 The fine balance between the secretion, composition, volume and turnover of cerebrospinal fluid (CSF) is strictly regulated. However, during certain neurological diseases, this balance can be disrupted.
Steven William Bothwell +2 more
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Scientific Reports, 2023 Ensuring the transport of oxygenated blood to the brain is one of the priorities of the human body. In the literature, there are many models of cerebral circulation with different levels of complexity used to assess pathological conditions, support ...
Adam Piechna, Krzysztof Cieślicki
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Frontiers in Pediatrics, 2013 First stage palliation of hypoplastic left heart syndrome (HLHS), i.e. the Norwood operation, results in a complex physiological arrangement, involving different shunting options (modified Blalock-Taussig, RV-PA conduit, central shunt from the ascending ...
Giovanni eBiglino +8 more
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The physical oceanography of the transport of floating marine debris
Environmental Research Letters, 2020 Marine plastic debris floating on the ocean surface is a major environmental problem. However, its distribution in the ocean is poorly mapped, and most of the plastic waste estimated to have entered the ocean from land is unaccounted for.
Erik van Sebille +37 more
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