Results 31 to 40 of about 8,889,214 (307)
The asymptotics of neutral curve crossing in Taylor–Dean flow
Zeitschrift für angewandte Mathematik und Physik, 2005 The fluid flow between a pair of coaxial circular cylinders generated by the uniform rotation of the inner cylinder and an azimuthal pressure gradient is susceptible to both Taylor and Dean type instabilities. The flow can be characterised by two parameters: a measure of the relative magnitude of the rotation and pressure effects and a non-dimensional ...
Hills, C. P., Bassom, A. P.
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Steady laminar flow in a 90° bend
Advances 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
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Fractionation of Magnetic Microspheres in a Microfluidic Spiral: Interplay between Magnetic and Hydrodynamic Forces. [PDF]
PLoS 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
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PIV-Measurements of Centrifugal Instabilities in a Rectangular Curved Duct with a Small Aspect Ratio
Fluids, 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
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Micromachines, 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
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Effect of an oscillating time-dependent pressure gradient on Dean flow: transient solution
Beni-Suef University Journal of Basic and Applied Sciences, 2020 Navier-Stokes and continuity equations are utilized to simulate fully developed laminar Dean flow with an oscillating time-dependent pressure gradient. These equations are solved analytically with the appropriate boundary and initial conditions in terms ...
B. Jha, D. Gambo
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Applied Ocean ResearchDean 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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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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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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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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