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Subgrid-Scale Segregation of Chemically Reactive Species in a Neutral Boundary Layer

  • J. P. Meeder
  • F. T. M. Nieuwstadt
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 5)

Abstract

We study the binary reaction between an ambient species and a species emitted from a point source in the form of a plume. The concentration of both species is simulated in a neutral boundary layer with help of large-eddy simulation. The contribution of subgrid-scale segregation of the reactants is taken into account by using second-order closure technique for the subgrid-scale covariance. For the slow reaction case the model results agree with wind tunnel experiments. The calculations reveal that subgrid-scale segregation is important for relatively fast reactions, for example the reaction between NO and O3. Regions of high subgrid-scale segregation are located in the vicinity of the source and near the plume edge. In general, the subgrid contribution to the segregation reduces the mean reaction rate.

Keywords

Convective Boundary Layer Wind Tunnel Experiment Damkohler Number Reaction Rate Coefficient Wind Tunnel Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Andren, A., Brown, A.R., Graf, J., Mason, P.J., Moeng, C.H., Nieuwstadt, F.T.M., and Schumann, U. (1994) Large-eddy simulation of a neutrally stratified boundary layer: A comparison of four computer codes, Q.J.R. Meteorol. Soc, 120, pp. 1457–1484.ADSCrossRefGoogle Scholar
  2. Beets, C., Duynkerke, P.G., Meeder, J.P. and Nieuwstadt, F.T.M., Large-eddy simulation of chemically reactive species in a convective atmospheric boundary layer, submitted to J. Appl. Meteor.Google Scholar
  3. Builtjes, P.J.H. (1983) A comparison between chemically reacting plume models and wind tunnel experiments, Air Pollution Modelling and its Application II (edited by de Wispelaere, C), pp. 59–84. Plenum Press, N.Y.CrossRefGoogle Scholar
  4. Donaldson, C. du P. and Hilst, G.R. (1972) Effect of inhomogeneous mixing on atmospheric photochemical reactions, Environ. Sci. Technol., 6, pp. 812–816.ADSCrossRefGoogle Scholar
  5. Meeder, J.P., Bouwmans, I. and Nieuwstadt, F.T.M. (1994) The large-eddy simulation of dispersion of passive and chemically reactive pollutants in a convective atmospheric boundary layer, Direct and Large-Eddy Simulation I (edited by Voke, P.R., Kleiser, L. and Chollet, J.P.), pp. 179–188.Google Scholar
  6. Nieuwstadt, F.T.M., Mason, P.J., Moeng, C.H. and Schumann, U. (1991) Large-eddy simulation of the convective boundary layer: A comparison of four computer codes, Proc. 8th Symposium on Turbulent Shear Flows.Google Scholar
  7. Piacsek, A.P. and Williams, G.P. (1970) Conservation properties of convection difference schemes, J. of Comp. Phys., 6, pp. 392–405.ADSCrossRefzbMATHGoogle Scholar
  8. Schumann, U. (1989) Large-eddy simulation of turbulent diffusion with chemical reactions in the convective boundary layer, Atmos. Environ., 23(8), pp. 1713–1727.ADSCrossRefGoogle Scholar
  9. Sykes, R.I., Henn, D.S. and Parker, S.F. (1992) Large-eddy simulation of a turbulent reacting plume, Atmos. Environ., 26A(14), pp. 2565–2574.ADSCrossRefGoogle Scholar
  10. Sykes, R.I., Parker, S.F., Henn, D.S. and Lewellen, W.S. (1994) Turbulent mixing with chemical reaction in the planetary boundary layer, J. Appl. Meteor., 33, pp. 825–834.ADSCrossRefGoogle Scholar
  11. Toor, H.L. (1969) Turbulent mixing of two species with and without chemical reactions, IEC Fundamentals, 8, pp. 655–659.CrossRefGoogle Scholar
  12. Zalesak, S.T. (1979) A fully multidimensional flux-corrected transport algorithm for fluids, J. of Comp. Phys., 31, pp. 335–362.ADSCrossRefzbMATHMathSciNetGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • J. P. Meeder
    • 1
  • F. T. M. Nieuwstadt
    • 1
  1. 1.J.M. Burgers CentreLaboratory of Aero-and HydrodynamicsDelftThe Netherlands

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