Results 41 to 50 of about 35,029 (280)
A numerical study of flow characteristics in a helical pipe
Advances in Mechanical Engineering, 2016 Flow characteristics and loss mechanism inside the helical pipe with large-caliber and large-scale Dean number were analyzed in this study. Numerical simulation was carried out for exploring velocity distribution, pressure field, and secondary flow by ...
Lingdi Tang, Yue Tang, Siva Parameswaran
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Experimental Study of Heat Transfer Coefficients of Shell and Helically Coiled Tube Heat Exchangers [PDF]
Engineering and Technology Journal, 2013 This work presents an experimental study of the heat transfer coefficients of shell and helically coiled tube heat exchangers. Three heat exchangers with different coil pitches were tested for both parallel-flow and counter-flow arrangement.
Sattar Jaber Habeeb Al-Jabair +1 more
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The Separation of Microalgae Using Dean Flow in a Spiral Microfluidic Device
Inventions, 2018 A cell-in-droplet encapsulation using Dean flow in a spiral microfluidic device was applied to separate microalgae. In recent years, researchers have been interested in separating micro particles using microfluidic chips because of its great advantages ...
Ming-Lung Lee, Da-Jeng Yao
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Optimization of lateral inlet/outlet with horizontal bend in pumped storage power station
Shui kexue jinzhanIn practical engineering of pumped storage power station，water tunnels often feature horizontal bends influenced by terrain，leading to significant flow differences between the channels at the inlet/outlet.
Ganggui GUO +4 more
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Advances in Unsteady Dynamics of Secondary Flow in 90° Pipe Bends [PDF]
长江科学院院报[Objective] The unsteady motion of secondary flow, namely Dean vortices, in bent pipes can induce thermal fatigue and mechanical fatigue, posing a serious threat to the safe operation of industrial piping systems.
WANG Zhi-xin, HAN Song-lin, JIANG Zhi-bing
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, 2023 In this paper, 3D particle focusing in a straight channel with asymmetrical expansion-contraction cavity arrays (ECCA channel) is achieved by exploiting the dean-flow-coupled elasto-inertial effects.
J Zhang (7490018) +6 more
core
Case Studies in Thermal EngineeringThe majority of reported findings indicate that the fluid flow and heat transfer characteristics within helically coiled tubes (HCTs) with small curvature can be determined solely by Dean number.
Jinlong Zhang +4 more
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Effects of inlet junctions on horizontally stratified flows
AIP Advances, 2023 Horizontally stratified flows can be seen in a wide variety of micro-scale engineering problems. Recent studies have shown that diffusion at the interface between two liquids leads to a lateral flow, causing the fluid to rotate around the central axis of
Pooyan Heravi, Li-An Chu, Da-Jeng Yao
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Laminar-turbulent transition in Taylor-Dean flow
Journal of Physics: Conference Series, 2005 An experimental study is reported of flows produced in a moderate Taylor-Couette system, Γ ≈ 15, closed or azimuthally opened. In the last case, the flow is bounded by θ = 0 and (2π − θ1) where θ1 = 30° represents the region cut-off by a diaphragm.
A Ait Aider, S Skali, J P Brancher
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Case Studies in Thermal Engineering, 2023 This study numerically analyzes the thermohydraulic performance and exergy destruction in a corrugated spiral tube, considering inward, outward, and combined inward-outward configurations versus smooth spiral tubes.
Noureddine Elboughdiri +9 more
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