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CFD simulations of near-field pollutant dispersion with different plume buoyancies


CFD simulations of near-field pollutant dispersion with different plume buoyancies

Tominaga, Yoshihide and Stathopoulos, Ted (2018) CFD simulations of near-field pollutant dispersion with different plume buoyancies. Building and Environment . ISSN 03601323 (In Press)

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Official URL: http://dx.doi.org/10.1016/j.buildenv.2018.01.008


This study performs computational fluid dynamics simulations for flow and dispersion fields around an isolated cubic building model with tracer gases being exhausted from an exit behind the building. The tracer gases have three different buoyancies according to the difference in density with ambient air and, therefore, behave as neutral, light, and heavy gases. The performance of steady Reynolds-averaged Navier–Stokes (RANS) simulations with the Boussinesq approximation is examined herein by comparing the simulation results with the experimental results for different plume buoyancies. The steady RANS computations can generally reproduce the impact of plume buoyancy on the mean concentration in the experimental results even if the model performance for heavy gases is better than that for light gases and worse than that for neutral gases. This tendency is closely related to the prediction accuracy of the mean velocity and turbulent kinetic energy behind the building, which is restricted by the steady RANS simulations. The study also confirmed that the buoyancy modeling in the ε equation shows a negligible influence on the results.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Article
Authors:Tominaga, Yoshihide and Stathopoulos, Ted
Journal or Publication:Building and Environment
Date:9 January 2018
Digital Object Identifier (DOI):10.1016/j.buildenv.2018.01.008
Keywords:CFD; Plume buoyancy; Near-field dispersion; Cubical building
ID Code:983391
Deposited By: Danielle Dennie
Deposited On:10 Jan 2018 19:38
Last Modified:01 Jan 2019 01:00


Y. Tominaga, T. Stathopoulos Ten questions concerning modeling of near-field pollutant dispersion in the built environment Build. Environ., 105 (2016), pp. 390–402

R.N. Meroney Lift off of buoyant gas initially on the ground J. Wind Eng. Ind. Aerod., 5 (1979), pp. 1–11

P.T. Roberts, D.J. Hall Wind tunnel simulation. Boundary layer effects in dense gas dispersion experiments J. Loss Prev. Process. Ind., 7 (2) (1994), pp. 106–117

W.H. Snyder Similarity criteria for the application of fluid models to the study of air pollution meteorology, Bound –Lay Meteorol., 3 (1) (1972), pp. 113–134

S.P.S. Arya, J.F. Lape Jr. A comparative study of the different criteria for the physical modeling of buoyant plume rise in a neutral atmosphere Atmos. Environ. pt A, 24 (2) (1990), pp. 289–295

A. Robins, I. Castro, P. Hyden, N. Steggel, D. Contini, D. Heist, T.J. Taylor A wind tunnel study of dense gas dispersion in a stable boundary layer over a rough surface Atmos. Environ., 35 (2001), pp. 2253–2263

X.X. Li, C.H. Liu, D.Y.C. Leung, K.M. Lam Recent progress in CFD modelling of wind field and pollutant transport in street canyons Atmos. Environ., 40 (2006), pp. 5640–5658

B. Blocken, T. Stathopoulos, J. Carmeliet, J.L.M. Hensen Application of CFD in building performance simulation for the outdoor environment: an overview J. Build. Perform. Simulat., 4 (2011), pp. 157–184

Y. Tominaga, T. Stathopoulos CFD simulation of near-field pollutant dispersion in the urban environment: a review of current modeling techniques Atmos. Environ., 79 (2013), pp. 716–730

S. Di Sabatino, R. Buccolieri, P. Salizzoni Recent advancements in numerical modelling of flow and dispersion in urban areas: a short review Int. J. Environ. Pollut., 52 (3/4) (2013), pp. 172–191

B. Blocken 50 years of computational wind engineering: past, present and future J. Wind Eng. Ind. Aerod., 129 (2014), pp. 69–102

M. Lateb, R.N. Meroney, M. Yataghene, H. Fellouah, F. Saleh, M.C. Boufadel On the use of numerical modelling for near-field pollutant dispersion in urban environments: a review Environ. Pollut., 208 (Part A) (2016), pp. 271–283

S. Di Sabatino, R. Buccolieri, B. Pulvirenti, R. Britter Simulations of pollutant dispersion within idealised urban-type geometries using CFD and integral models Atmos. Environ., 41 (2007), pp. 8316–8329

B. Blocken, T. Stathopoulos, P. Saathoff, X. Wang Numerical evaluation of pollutant dispersion in the built environment: comparisons between models and experiments J. Wind Eng. Ind. Aerod., 96 (2008), pp. 1817–1831

Y. Tominaga, T. Stathopoulos Numerical simulation of dispersion around an isolated cubic building: comparison of various types of k-ε models Atmos. Environ., 43 (20) (2009), pp. 3200–3210

Y. Tominaga T.Stathopoulos, Numerical simulation of dispersion around an isolated cubic building: model evaluation of RANS and LES Build. Environ., 45 (2010), pp. 2231–2239

P. Gousseau, B. Blocken, T. Stathopoulos, G.J.F. van Heijst CFD simulation of near-field pollutant dispersion on a high-resolution grid: a case study by LES and RANS for a building group in downtown Montreal Atmos. Environ., 45 (2) (2011), pp. 428–438

M. Chavez, B. Hajra, T. Stathopoulos, A. Bahloul Near-field pollutant dispersion in the built environment by CFD and wind tunnel simulations J. Wind Eng. Ind. Aerod., 99 (2011), pp. 330–339

A.O. Demuren, W. Rodi Three-dimensional numerical calculations of flow and plume spreading past cooling towers J. Heat Trans., 109 (1987), pp. 113–119

G.A. Perdikaris, F. Mayinger Numerical simulation of the spreading of buoyant gases over topographically complex terrain Int. J. Energ. Res., 18 (1994), pp. 53–61

H.A. Olvera, A.R. Choudhuri, W.-W. Li Effects of plume buoyancy and momentum on the near-wake flow structure and dispersion behind an idealized building J. Wind Eng. Ind. Aerod., 96 (2) (2008), pp. 209–228

L.H. Hu, Y. Xu, W. Zhu, L. Wu, F. Tang, K.H. Lu Large eddy simulation of pollutant gas dispersion with buoyancy ejected from building into an urban street canyon J. Hazard Mater., 192 (3) (2011), pp. 940–948

S.B. Sutton, H. Brandt, B.R. White Atmospheric dispersion of a heavier-than-air gas near a two-dimensional obstacle Bound.-Lay. Meteorol., 35 (1986), pp. 125–153

F. Gavelli, E. Bullister, H. Kytomaa Application of CFD (Fluent) to LNG spills into geometrically complex environments J. Hazard Mater., 159 (2008), pp. 158–168

F. Scargiali, F. Grisafi, A. Busciglio, A. Brucato Modeling and simulation of dense cloud dispersion in urban areas by means of computational fluid dynamics J. Hazard Mater., 197 (2011), pp. 285–293

S.M. Tauseef, D. Rashtchian, S.A. Abbasi CFD-based simulation of dense gas dispersion in presence of obstacles J. Loss Prevent. Proc., 24 (4) (2011), pp. 371–376

R.N. Meroney CFD modeling of dense gas cloud dispersion over irregular terrain J. Wind Eng. Ind. Aerod., 104–106 (2012), pp. 500–508

R. Ohba, A. Kouchi, T. Hara, V. Vieillard, D. Nedelka Validation of heavy and light gas dispersion models for the safety analysis of LNG tank J. Loss Prevent. Proc., 17 (2004), pp. 325–337

Y. Tominaga, T. Stathopoulos Steady and unsteady RANS simulations of pollutant dispersion around isolated cubical buildings: effect of large-scale fluctuations on the concentration field J. Wind Eng. Ind. Aerod., 165 (2017), pp. 23–33

M. Schatzmann, A.J. Policastro Effect of the Boussinesq approximation on the results of strongly-buoyant plume calculations J. Climate Appl. Meteor., 23 (1) (1984), pp. 117–123

M. Lateb, C. Masson, T. Stathopoulos, C. Bédard Simulation of near-field dispersion of pollutants using detached-eddy simulation Comput. Fluid, 100 (2014), pp. 308–320

Y. Tominaga, S. Murakami, A. Mochida, A. Shibuya, Y. Noguchi Wind tunnel tests on turbulent diffusion and concentration fluctuation of buoyant gas near building , Proceedings of 12th National Symposium on Wind Engineering, (1992), pp. 119–124 (in Japanese)

Y. Tominaga, S. Murakami, A. Mochida CFD prediction of gaseous diffusion around a cubic model using a dynamic mixed SGS model based on composite grid technique J. Wind Eng. Ind. Aerod., 67&68 (1997), pp. 827–841

Ansys Fluent 16.0 Theory Guide, Ansys Inc., Canonsburg, U.S.A. (2014)

P.F. Crapper, W.D. Baines Some remarks on non-boussinesq forced plumes Atmos. Environ., 12 (10) (1978), pp. 1939–1941

P.F. Crapper, W.D. Baines Non boussinesq forced plumes Atmos. Environ., 11 (5) (1977), pp. 415–420

S.V. Patankar, D.B. Spalding A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows Int. J. Heat Mass Tran., 15 (10) (1972), pp. 1787–1806

J. Franke, A. Hellsten, H. Schlünzen, B. Carissimo Best Practice Guideline for the CFD Simulation of Flows in the Urban Environment COST Office, Brussels (2007)

Y. Tominaga, A. Mochida, R. Yoshie, H. Kataoka, T. Nozu, M. Yoshikawa, T. Shirasawa AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings J. Wind Eng. Ind. Aerod., 96 (2008), pp. 1749–1761

B. Blocken, T. Stathopoulos, J. Carmeliet CFD simulation of the atmospheric boundary layer: wall function problems Atmos. Environ., 41 (2007), pp. 238–252

B.E. Launder, D.B. Spalding Mathematical Models of Turbulence Academic Press, New York, U.S.A. (1972)

V. Yakhot, S.A. Orszag, S. Thangam, T.B. Gatski, C.G. Speziale Development of turbulence models for shear flows by a double expansion technique Phys. Fluid. A, 4 (1992), pp. 1510–1520

T.H. Shih, W.W. Liou, A. Shabbir, Z. Yang, J. Zhu A new k-ε eddy viscosity model for high Reynolds number turbulent flows Comput. Fluid, 24 (1995), pp. 227–238

F.R. Menter Two-equation eddy-viscosity turbulence models for engineering applications AIAA J., 32 (1994), pp. 1598–1605

R. Kumar, A. Dewan Computational models for turbulent thermal plumes: recent advances and challenges Heat Tran. Eng., 35 (4) (2014), pp. 367–383

P.L. Viollet The modelling of turbulent recirculating flows for the purpose of reactor thermal-hydraulic analysis Nucl. Eng. Des., 99 (1987), pp. 365–377

Y. Tominaga, T. Stathopoulos Turbulent Schmidt numbers for CFD analysis with various types of flowfield Atmos. Environ., 41 (37) (2007), pp. 8091–8099

M. Schatzmann, H. Olesen, J. Franke (Eds.), COST 732 Model Evaluation Case Studies: Approach and Results, University of Hamburg, Hamburg, Germany (2010)

S.R. Hanna, O.R. Hansen, S. Dharmavaram FLACS CFD air quality model performance evaluation with Kit Fox, MUST, Prairie Grass, and EMU observations Atmos. Environ., 38 (2004), pp. 4675–4687

Y. Tominaga, A. Mochida, S. Murakami, S. Sawaki Comparison of various revised k-ε models and LES applied to flow around a high-rise building model with 1:1:2 shape placed within the surface boundary layer J. Wind Eng. Ind. Aerod., 96 (2008), pp. 389–411

P. Gousseau, B. Blocken, G.J.F. van Heijst CFD simulation of pollutant dispersion around isolated buildings: on the role of convective and turbulent mass fluxes in the prediction accuracy J. Hazard Mater., 194 (2011), pp. 422–434

B. Blocken, R. Vervoort, T. van Hooff Reduction of outdoor particulate matter concentrations by local removal in semi-enclosed parking garages: a preliminary case study for Eindhoven city center J. Wind Eng. Ind. Aerod., 159 (2016), pp. 80–98

M.R. Mokhtarzadeh-Dehghan, A. Akcayoglu, A.G. Robins Numerical study and comparison with experiment of dispersion of a heavier-than-air gas in a simulated neutral atmospheric boundary layer J. Wind Eng. Ind. Aerod., 110 (2012), pp. 10–24

B.J. Daly, F.H. Harlow Transport equations in turbulence Phys. Fluid., 13 (1970), pp. 2634–2649

M.M. Gibson, B.E. Launder Ground effects on pressure fluctuations in the atmospheric boundary layer J. Fluid Mech., 86 (3) (1978), pp. 491–511

K. Van Maele, B. Merci Application of two buoyancy-modified k-epsilon turbulence models to different types of buoyant plumes Fire Saf. J., 41 (2) (2006), pp. 122–138
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