Results 11 to 20 of about 8,927 (215)
Chiral symmetry breaking and entropy production in Dean vortices
Physics of Fluids, 2023 In toroidal pipes, the secondary flow in cross section is a mirror symmetric pair of counter-rotating axially oriented Dean vortices. This mirror symmetry is broken in helical pipes. We investigate in detail the mirror symmetry breaking in these secondary flows in going from toroidal to helical geometries.
Isabel Herreros, David Hochberg
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Energies, 2023 Vortex generators and pin fins are conventionally used to deliver fluid mixing and improved convective heat transfer. The increased pressure loss following a fractional increase in heat transfer, as well as the complex manufacturing design, leave room ...
Ali Ammar Naqvi +2 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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Nanomaterials, 2020 A new micro heat exchanger was analyzed using numerical formulation of conjugate heat transfer for single-phase fluid flow across copper microchannels. The flow across bent channels harnesses asymmetric laminar flow and dean vortices phenomena for heat ...
Muhammad Zia Ullah Khan +8 more
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Influence of the meandering channel geometry on the thermo-hydraulic performances of an intensified heatexchanger/reactor [PDF]
, 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
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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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Propulsion and Power Research, 2021 In this article, a theoretical analysis on flow in a curvilinear horizontal coaxial cylinder with permeable walls has been proposed. Specifically, the transient impact of an oscillating pressure gradient has been taken into account.
Basant K. Jha, Dauda Gambo
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Stereo and time-resolved PIV for measuring pulsatile exhaust flow from a motorized engine
Journal of Fluid Science and Technology, 2018 The present experimental study deals with a pulsatile turbulent flow simulating the exhaust flow of an automotive engine. In the experiments, a four-cylinder engine is used as an exhaust-flow generator to realize flow conditions close to those in an ...
Junichi OKI +7 more
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Microscopic Investigation of Vortex Breakdown in a Dividing T-Junction Flow [PDF]
, 2018 3D-printed microfluidic devices offer new ways to study fluid dynamics. We present the first clear visualization of vortex breakdown in a dividing T-junction flow. By individual control of the inflow and two outflows, we decouple the effects of swirl and
Chan, San To +2 more
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Developing Lengths in Woven and Helical Tubes with Dean Vortices Flows [PDF]
Engineering Applications of Computational Fluid Mechanics, 2009 Coiling membranes help to create in a flow Dean vortices which enhance flux permeation and bring improvement to membrane filtration processes.
Fanny Springer +3 more
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