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Keywords: Mass Transfer
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Proceedings Papers

Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T02A007, August 3–5, 2022
Paper No: FEDSM2022-87569
... of the surface in contact with the flow, on Ta and Re. Taylor-Couette flow hydrodynamic instabilities smooth surface wavy surface axial flow vortex mass transfer wall shear stress Proceedings of the ASME 2022 Fluids Engineering Division Summer Meeting FEDSM2022 August 3-5, 2022, Toronto, Ontario...
Proceedings Papers

Proc. ASME. FEDSM2021, Volume 2: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V002T04A016, August 10–12, 2021
Paper No: FEDSM2021-65631
... or the Taylor number is taken into account. Keywords: Taylor-Couette Flow, Hydrodynamic instabilities, Rough surface, Wavy surface, Mass transfer, Wall The breaking of one of these symmetries causes the shear stress. appearance of a bifurcation which represents a transition from a flow state to a new...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T02A009, July 13–15, 2020
Paper No: FEDSM2020-20326
... and with an axial flow on the transfer. Keywords: Taylor-Couette Flow, Instabilities, Axial flow, Grooved surface, Mass transfer, Wall shear stress. 1 Contact author: fethi.aloui@uphf.fr Nomenclature d Gap between external and internal cylinders (m) Re External cylinder radius (m) Ri Internal cylinder radius (m) Ro...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A043, July 28–August 1, 2019
Paper No: AJKFluids2019-5030
...Abstract Abstract Phenomenological equations derived for the convective heat and mass transfer to Taylor bubbles (TB) rising in vertical cylindrical pipes. Three models presented; first for the bubble thin liquid layer region, second for the rounded nose region, and third for the wake region...
Proceedings Papers

Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT15A002, July 7–11, 2013
Paper No: FEDSM2013-16077
..., and finally recombination, achieving stretching/folding following the baker’s transform. Mixing is efficiently ensured by diffusion without generating prohibitive pressure drops. In this work, a chemical probe is used to study mixing and mass transfer in two different split-and-recombine square duct...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 1141-1148, July 8–12, 2012
Paper No: FEDSM2012-72035
... equipped with helical inserts. It is expected to qualify as a low-cost compact heat-exchanger reactor and static mixer of high performance. KEYWORDS Micro-mixing, mass transfer, chemical probe method, iodide- iodate, turbulence scales, chemical reactors, static mixers, experimental procedure, helical...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 889-898, July 8–12, 2012
Paper No: FEDSM2012-72232
... USE OF LATTICE-BOLTZMANN METHOD IN MASS TRANSFER FOR THE WALL SHEAR STRESS CALCULATION IN AN UNSTEADY LAMINAR FLOW DOWNSTREAM OF A CYLINDER LOCATED IN A 2D RECTANGULAR CHANNEL Wafik ABASSI 1,2,3 Wafik.Abassi@mines-nantes.fr Fethi ALOUI 2* * Fethi.Aloui@univ-valenciennes.fr Sassi BEN NASRALLAH 3...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 285-290, July 30–August 2, 2007
Paper No: FEDSM2007-37490
... transfer. The bubble diameter d and Reynolds number Re L are varied from 5.0 to 26 mm (λ = 0.20 − 1.0) and from 0 to 3100, respectively. Millipore water, tap water and water contaminated with Triton X–100 are used for the liquid phase. Mass transfer coefficients k L are evaluated from changes...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 453-461, July 30–August 2, 2007
Paper No: FEDSM2007-37031
... for the hydrogenation of anthra-chinone. bubble column heterogeneous chemical reaction population balance equation CFD mass transfer Proceedings of FEDSM2007 5th Joint ASME/JSME Fluids Engineering Conference for the kernel functions in the population balance equation describing bubble coalescence...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 487-497, July 30–August 2, 2007
Paper No: FEDSM2007-37116
... 26 03 2009 The motion and mass transfer of swarms of mono-size non-circulating spherical bubbles (without any surface active material) in power-law liquids have been numerically investigated at moderate Reynolds and Peclet numbers. A simple sphere-in-a-sphere cell model has been used...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 3, 567-574, July 11–15, 2004
Paper No: HT-FED2004-56270
... 03 03 2009 In this study we considered mass transfer in a binary system comprising a stationary fluid dielectric sphere embedded into an immiscible dielectric liquid under the influence of an alternating electric field. Fluid sphere is assumed to be solvent-saturated so...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1327, July 6–10, 2003
Paper No: FEDSM2003-45676
... generated bubble-surface ripples. The bubble oscillating motion is characterized quantitatively by the bubble-gyration (or edge-rotation) frequency, diameter and velocity. In addition, dynamics of mass transfer across gas–liquid interface in a gas-dispersed (continuous liquid) system are examined via high...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 1: Symposia, Parts A and B, 1071-1076, July 17–20, 2006
Paper No: FEDSM2006-98104
...- and Macromixing Laminar Flow Mass Transfer Laser Induced Fluorescence Particle Image Velocimetry interrelation of macro- and micromixing subject to the local dissipation of energy. Keywords: Micro- and Macromixing, Laminar Flow, Mass Transfer, Laser Induced Fluorescence, Particle Image Velocimetry...