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]

open access: yes, 2013
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

open access: yesAdvances in Mechanical Engineering, 2016
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

open access: yesFluids, 2021
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
doaj   +1 more source

Laminar-turbulent transition in Taylor-Dean flow

open access: yesJournal 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
openaire   +1 more source

Fractionation of Magnetic Microspheres in a Microfluidic Spiral: Interplay between Magnetic and Hydrodynamic Forces. [PDF]

open access: yesPLoS ONE, 2017
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
doaj   +1 more source

High-Throughput White Blood Cell (Leukocyte) Enrichment from Whole Blood Using Hydrodynamic and Inertial Forces

open access: yesMicromachines, 2020
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
doaj   +1 more source

A numerical study of flow characteristics in a helical pipe

open access: yesAdvances 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
doaj   +1 more source

Experimental Study of Heat Transfer Coefficients of Shell and Helically Coiled Tube Heat Exchangers [PDF]

open access: yesEngineering 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
doaj   +1 more source

Numerical Investigation of an Unsteady and Anisotropic Turbulent ‎Flow Downstream a 90° Bend Pipe with and without Ribs [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
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

Analysis of Dean vortices and sediment distribution in inlet passage of nearshore pump stations under solid-liquid two-phase conditions

open access: yesApplied Ocean Research
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
doaj   +1 more source

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