Journal ArticleDOI
A diffusion-inertia model for predicting dispersion and deposition of low-inertia particles in turbulent flows
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TLDR
In this article, a diffusion-inertia model is proposed for predicting dispersion and deposition of aerosol particles in two-phase turbulent flows and the performance of this model as applied to the flows in straight ducts and circular bends.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2010-01-15. It has received 39 citations till now. The article focuses on the topics: Two-phase flow & Inertia.read more
Citations
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Numerical Simulations of Two -Way Coupling Effects in a Particle-Laden Turbulent Pipe Flow, And, Evaluation of the Equilibrium Eulerian Approach for the Evolution of Particle Concentration in Isotropic Turbulence
TL;DR: In this paper, the accuracy of the equilibrium Eulerian approach in evolving the particulate concentration field is evaluated by comparing it against the Lagrangian approach, for varying particle response time and terminal velocity.
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Modeling of bubble coalescence and break-up in turbulent bubbly flow
TL;DR: In this article, the authors deal with the issue of modeling isothermal mono-and polydisperse bubbly flows in the framework of Eulerian approach, based on the diffusion inertia model (DIM) coupled with method of δ -function approximation.
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Transport Equation for Suspended Sediment Based on Two-Fluid Model of Solid/Liquid Two-Phase Flows
TL;DR: In this article, a transport equation for sediment in suspension based on a two-fluid model of solid/liquid two-phase flows is derived from the consideration of mass conservation for solid particles, and the velocity of the solid phase is obtained from an asymptotic solution of the momentum conservation equation for solid phase.
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Literature Survey of Numerical Heat Transfer (2010-2011)
TL;DR: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published in 2010 and 2011 has been conducted as mentioned in this paper, which can be used as a starting point for future work.
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A simple stochastic quadrant model for the transport and deposition of particles in turbulent boundary layers
TL;DR: In this article, a simple stochastic quadrant model for calculating the transport and deposition of heavy particles in a fully developed turbulent boundary layer based on the statistics of wall-normal fluid velocity fluctuations obtained from a fully-developed channel flow is presented.
References
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Journal ArticleDOI
The numerical computation of turbulent flows
Brian Launder,D. B. Spalding +1 more
TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
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Progress in the development of a Reynolds-stress turbulence closure
TL;DR: In this article, the authors developed a model of turbulence in which the Reynolds stresses are determined from the solution of transport equations for these variables and for the turbulence energy dissipation rate E. Particular attention is given to the approximation of the pressure-strain correlations; the forms adopted appear to give reasonably satisfactory partitioning of the stresses both near walls and in free shear flows.
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Thermophoresis of particles in a heated boundary layer
TL;DR: In this paper, a laser-Doppler velocimeter (LDV) study of velocity profiles in the laminar boundary layer adjacent to a heated flat plate revealed that the seed particles used for the LDV measurements were driven away from the plate surface by thermophoretic forces, causing a particle free region within the boundary layer of approximately one half the boundary-layer thickness.
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Statistische Theorie nichthomogener Turbulenz
TL;DR: In this article, a differentialgleichungen fur the statistischen Korrelationen zwischen zwei Komponenten der Geschwindigkeitsschwankungen hergeleitet and die Wirkung der in theseen Gleichungens auftretenden Glieder diskutiert is discussed.
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Turbulent Diffusion of Heavy Particles in the Atmosphere
TL;DR: In this article, the authors discuss the likely differences between the diffusion of gaseous and particulate matter in the atmosphere, as would be observed by fixed point instruments (absolute diffusion).