Validation of OpenFoam for heavy gas dispersion applications

Mäck, A.; Spruijt, M.P.N.

doi:10.1016/j.jhazmat.2013.08.065

Cited by 41 publications

(13 citation statements)

References 13 publications

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“…In our research, the numerical wind tunnel was built on an opensource CFD platform, OpenFOAM (www.openfoam.org), which was tested and validated in previous publications (Mack and Spruijt, 2013;Nagaosa, 2014). A self-developed solver was compiled for the simulation of air pollutant distribution.…”

Section: Numerical Wind Tunnelmentioning

confidence: 99%

Characteristics of air pollutant dispersion around a high-rise building

Zhang

Kwok

et al. 2015

Environmental Pollution

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A numerical wind tunnel model was proposed. The computed results of the pollutant diffusion around a typical Hong Kong high-rise building model (at a linear scale of 1:30), were found to show a similar trend to the outcomes of self-conducted experimental measurements that the pathways of pollutant migration for windward and leeward pollutant emission are different. For the case with windward pollutant emission at the 3rd floor within a re-entry, the pollutant migrated downwards due to the downwash created by the wind. In contrast, for the case with leeward pollution emission, dispersion is dominated by intense turbulent mixing in the near wake and characterized by the upward migration of the pollutant in the leeward re-entry. The simulated results of haze-fog (HF) studies confirm that the pathway of pollutant migration is dominated by wind-structure interaction and buoyancy effect only plays a minor role in the dispersion process.

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Section: Numerical Wind Tunnelmentioning

confidence: 99%

Characteristics of air pollutant dispersion around a high-rise building

Zhang

Kwok

et al. 2015

Environmental Pollution

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“…The study employed the turbulence k‐ε model, the most commonly used in air flow applications. This model uses Reynolds‐averaged Navier–Stokes equations , which are time‐averaged equations of motion for fluid flow. At the inlet, fixed values of boundary conditions are applied to velocity, temperature turbulence kinetic energy, and dissipation rate.…”

Section: Modelling Conditionsmentioning

confidence: 99%

3D electro-thermal modelling and experimental validation of lithium polymer-based batteries for automotive applications

Daud

Chrenko

Santos

et al. 2016

Int. J. Energy Res.

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International audienceThis article presents an electro-thermal model of a stack of three lithium ion batteries for automotive applications. This tool can help to predict thermal behaviour of battery cells inside a stack. The open source software OpenFOAM provides the possibility to add heat generation because of Joule losses in a CFD model. Heat sources are introduced at the connectors and are calculated as a function of battery discharge current and internal resistance. The internal resistance is described in function of temperature. Simulation results are validated against experimental results with regard to cooling air flow field characteristic and thermal behaviour of the cell surface. The validation shows that the simulation is capable to anticipate air flow field characteristics inside the battery box. It also predicts correctly the thermal behaviour of the battery cells for various discharge rates and different cooling system conditions. The simulation supports the observation that batteries have a higher temperature close to the connectors and that the temperature increase depends highly on discharge rate and cooling system conditions. Copyright (C) 2016 John Wiley & Sons, Ltd

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“…Recently, various scien tists (Galeev, 2013b;Mack et al, 2013;Pandya et al, 2012) have focused on free dispersion of toxic gas as a main concern of different industrial plants. Since am monia is a common substance, which has many uses owing to its chemical and physical properties, it is widely used in various applications (refrigerators, condensors).…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Ammonia Dispersion with Mesh Barrier under Various Atmospheric Stability Conditions

Gerdroodbary¹,

Mokhtari²,

Bishehsari³

et al. 2016

Asian J. Atmos. Environ

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In this study, the effects of the mesh barrier on the free dispersion of ammonia were numerically inves tigated under different atmospheric conditions. This study presents the detail and flow feature of the dispersion of ammonia through the mesh barrier on various free stream conditions to decline and limit the toxic danger of the ammonia. It is assumed that the dispersion of the ammonia occurred through the leakage in the pipeline. Parametric studies were con ducted on the performance of the mesh barrier by using the Reynoldsaveraged NavierStokes equa tions with realizable k-ε turbulence model. Numeri cal simulations of ammonia dispersion in the pres ence of mesh barrier revealed significant results in a fully turbulent free stream condition. The results clearly show that the flow behavior was found to be a direct result of mesh size and ammonia dispersion is highly influenced by these changes in flow pat terns in downstream. In fact, the flow regime be comes laminar as flow passes through mesh barrier. According to the results, the mesh barrier decreased the maximum concentration of the ammonia gas and limited the risk zone (more than 500 ppm) lower than 2 m height. Furthermore, a significant reduction occurs in the slope of the upper boundary of NH 3 risk zone distribution at downstream when a mesh barrier is presented. Thus, this device highly restricts the leak distribution of ammonia in the industrial plan.

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Validation of OpenFoam for heavy gas dispersion applications

Cited by 41 publications

References 13 publications

Characteristics of air pollutant dispersion around a high-rise building

Characteristics of air pollutant dispersion around a high-rise building

3D electro-thermal modelling and experimental validation of lithium polymer-based batteries for automotive applications

Mitigation of Ammonia Dispersion with Mesh Barrier under Various Atmospheric Stability Conditions

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