Results 31 to 40 of about 550,152 (284)
Influence of the meandering channel geometry on the thermo-hydraulic performances of an intensified heatexchanger/reactor [PDF]
In the global context of process intensification, heat exchanger/reactors are promising apparatuses to implement exothermic chemical syntheses. However, unlike heat exchange processes, the implementation of chemical syntheses requires to control the ...
Anxionnaz-Minvielle, Zoé +3 more
core +3 more sources
Steady laminar flow in a 90° bend
This research undertook an assessment of the characteristics of laminar flow in a 90° bend. The research utilised the computational fluid dynamics software tool ANSYS Fluent, adopting a finite volume method.
Asterios Pantokratoras
doaj +1 more source
PIV-Measurements of Centrifugal Instabilities in a Rectangular Curved Duct with a Small Aspect Ratio
In this study, experimental measurements were undertaken using non-intrusive particle image velocimetry (PIV) to investigate fluid flow within a 180° rectangular, curved duct geometry of a height-to-width aspect ratio of 0.167 and a curvature of 0.54 ...
Afshin Goharzadeh, Peter Rodgers
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Laminar-turbulent transition in Taylor-Dean flow
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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Fractionation of Magnetic Microspheres in a Microfluidic Spiral: Interplay between Magnetic and Hydrodynamic Forces. [PDF]
Magnetic forces and curvature-induced hydrodynamic drag have both been studied and employed in continuous microfluidic particle separation and enrichment schemes. Here we combine the two.
S Dutz, M E Hayden, U O Häfeli
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A microfluidic chip, which can separate and enrich leukocytes from whole blood, is proposed. The chip has 10 switchback curve channels, which are connected by straight channels.
Batzorig Lombodorj +8 more
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A numerical study of flow characteristics in a helical pipe
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]
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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Numerical Investigation of an Unsteady and Anisotropic Turbulent Flow Downstream a 90° Bend Pipe with and without Ribs [PDF]
In this work, a numerical study of the dynamical behavior of unsteady and anisotropic turbulent flow downstream a 90° bended pipe was presented. For this purpose, comparative computations are carried out employing two flow configurations, bend pipe with ...
Rachid Chiremsel +3 more
doaj +1 more source
Dean vortices are secondary flow vortices formed by the coupling effect of centrifugal and viscous forces when fluid flows through curved pipes. In nearshore pump station inlet flow passages, inhaled sediment interacts with Dean vortices, complicating ...
Cheng Ma +4 more
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