Results 311 to 320 of about 443,134 (353)
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Reynolds number effects on mixing and reaction in a turbulent pipe flow
Chemical Engineering Science, 2001Abstract A new Lagrangian mixing model is presented that describes the turbulent mixing of reacting scalars as a cascade process from large to small scales. The model is derived by applying guidance of Eulerian multi-scale mixing models. Compared to these models, the essential advantage of the derived Lagrangian model is given by the fact that ...
Stefan Heinz, Dirk Roekaerts
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Non-Newtonian fluid effects on surface reactions in a microfluidic flow cell
AIP Conference Proceedings, 2012Mass transfer over a reactive surface in microfluidic flow cells plays a key role in understanding biomoleculer interactions and diagnosis of small molecules for biomedical and environmental applications. The effects of Non-Newtonian power law fluid on the binding reaction kinetic of immunoglobulin G in a flow cell are analyzed in this study. Governing
M. Bahattin Akgül +2 more
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ACS Applied Materials & Interfaces, 2015
Low-cost microfluidic devices are desirable for many chemical processes; however, access to robust, inert, and appropriately structured materials for the inner channel wall is severely limited. Here, the shear force within confined microchannels was tuned through control of reactant solution fluid-flow and shown to dramatically impact nano- through ...
Gang, Wang +7 more
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Low-cost microfluidic devices are desirable for many chemical processes; however, access to robust, inert, and appropriately structured materials for the inner channel wall is severely limited. Here, the shear force within confined microchannels was tuned through control of reactant solution fluid-flow and shown to dramatically impact nano- through ...
Gang, Wang +7 more
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Flow Field and Non-Isothermal Effects on Diffusion, Convection, and Reaction in Permeable Catalysts
Industrial & Engineering Chemistry Research, 1995We analyze non-isothermal effects on the efficiency of large-pore catalyst particles, where intraparticle convection may be important. The particle permeability is taken into account by studying the flow field within the particle simultaneously with the mass and the energy transport processes.
José C. B. Lopes +3 more
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Effects of chemical reactions on MHD micropolar fluid flow past a vertical plate in slip-flow regime
Applied Mathematics and Mechanics, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chaudhary, R. C., Jha, Abhay Kumar
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Heterogeneous-homogeneous reactions and melting heat transfer effects in flow with carbon nanotubes
Journal of Molecular Liquids, 2016Abstract The communication here addresses the impact of heterogeneous-homogeneous reactions in boundary layer flow of nanofluid saturating porous medium. The stretching cylinder caused the flow in presence of melting heat transfer. Analysis for single-wall carbon nanotubes (SWNTs) and multi-wall carbon nanotubes (MWNTs) is explored. Water is taken as
T. Hayat +3 more
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Space-charge effects in flowing-afterglow data analysis for negative-ion/molecule reactions
International Journal of Mass Spectrometry and Ion Physics, 1981Abstract In positive-ion/negative-ion plasmas, the space-charge fields (ambipolar fields) in the flow tube vary as the ion/molecule reaction proceeds if the value of the diffusion coefficient of the product ions is not equal to that for the reactant ions.
Shingo Matsuoka, Takaaki Tamura
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Effect of boundary reaction on solute dispersion in pulsatile flow through a tube
Journal of Fluid Mechanics, 1992This paper examines the streamwise dispersion of passive contaminant molecules released in a time-dependent laminar flow through a tube in the presence of boundary absorption or a catalytic wall reaction, which causes a depletion of contaminant in the flow.
Bijoy S. Mazumder, Samir K. Das
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Vertical drift and reaction effects upon contaminant dispersion in parallel shear flows
Journal of Fluid Mechanics, 1986It is shown how the effects of the initial discharge profile, vertical drift, and boundary absorption (catalytic reaction) can be incorporated into a Gaussian approximation for the two-dimensional contaminant distribution in a parallel shear flow. Exact and asymptotic expressions are derived for the centroid displacement, shear-dispersion coefficient ...
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Determination of Effective Reaction Conditions for Char Gasification in an Entrained Flow Reactor
Energy & Fuels, 2018The entrained flow reactor (EFR) is frequently applied to analyze the reactivity of pulverized coal char under controlled atmospheres of temperature and partial pressure.
Geun Sohn +4 more
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