Journal ArticleDOI
Effect of supply/exhaust diffuser configurations on the contaminant distribution in ultra clean environments: Eulerian and Lagrangian approaches
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TLDR
In this paper, the airflow pattern and particle dispersion in a contaminated full-scale cleanroom are investigated numerically using both Eulerian and Lagrangian approaches, and the results reveal that the supply/exhaust openings arrangement has a significant influence on the particulate contaminant dispersion.About:
This article is published in Energy and Buildings.The article was published on 2016-09-01. It has received 17 citations till now. The article focuses on the topics: Diffuser (thermodynamics) & Airflow.read more
Citations
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Study on the impacts of human walking on indoor particles dispersion using momentum theory method
TL;DR: In this paper, a new method of momentum theory was proposed to investigate human motion induced effects on indoor environments (i.e., momentum source implemented into Navier-Stokes equations to simulate human/objects moving).
Journal ArticleDOI
Numerical study of temperature-controlled airflow in comparison with turbulent mixing and laminar airflow for operating room ventilation
TL;DR: A variety of ventilation schemes have been proposed for reducing airborne bacteria-carrying particles (BCP) concentration and thus preventing post-operative infections as mentioned in this paper. But none of them are suitable for all patients.
Journal ArticleDOI
Stability and accuracy of numerical investigation of droplet motion under local ventilation airflow
TL;DR: In this paper, the effect of the droplet release number and evaporation on prediction stability and accuracy was evaluated by modeling the motion for two initial droplets (10 and 100μm) and three different airflow patterns in an upper-receiving ventilation system.
Journal ArticleDOI
Transport and control of droplets: A comparison between two types of local ventilation airflows
TL;DR: In this article, the authors investigated the transport of monodispersed droplets generated from an open tank with a large length/width ratio was investigated under the influence of an upper-receiving ventilation (URV) system and a push-pull ventilation (PPV) based on numerical simulation.
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Effect of air exhaust location on surgical site particle distribution in an operating room
TL;DR: In this article, the effect of exhaust outlet location on airflow and particle distribution in an operating room with laminar ventilation system via computational fluid dynamics (CFD) via four different exhaust opening configurations are comparatively examined: floor level, central level, ceiling level and floor & ceiling level.
References
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Book
Numerical heat transfer and fluid flow
TL;DR: In this article, the authors focus on heat and mass transfer, fluid flow, chemical reaction, and other related processes that occur in engineering equipment, the natural environment, and living organisms.
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.
Journal ArticleDOI
Development of turbulence models for shear flows by a double expansion technique
TL;DR: In this article, a two-equation model and Reynolds stress transport model are developed for turbulent shear flows and tested for homogeneous shear flow and flow over a backward facing step.
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COMPARISON OF DIFFERENT k-ε MODELS FOR INDOOR AIR FLOW COMPUTATIONS
TL;DR: In this paper, Jive k-e, two-equation models are evaluated for their performance in predicting natural convection, forced convection and mixed convection in rooms, as well as an impinging jet flow.
Journal ArticleDOI
Modeling Indoor Particle Deposition from Turbulent Flow onto Smooth Surfaces
TL;DR: Cheng et al. as discussed by the authors applied the results of recent studies of near-surface turbulence to produce an analogous model for particle deposition onto indoor surfaces that remains practical to use yet has a stronger physical basis.
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