Skip to main content
SpringerLink
Log in

A numerical diffusion model for continuous releases

  • Published:
Boundary-Layer Meteorology Aims and scope Submit manuscript

Abstract

The purpose of this study was to develop a diffusion model for a continuous point source which takes into account the increase of wind speed with height, and to compare this model with short-range diffusion experiments. The main problem was to find a good expression for the vertical diffusion coefficient. It turned out that good agreement between theory and experiment could only be obtained by introducing a settling speed W for the tracer combined with a conventional expression for the vertical diffusion (K(Z) = K 0Z1−p). An empirical relation was found between K 0 and τ vU and between W and bar σ vU2.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bruce, G. H., Peaceman, D. W., Rachford, H. H., and Rice, J. D.: 1953, ‘Calculation of Unsteady-State Gas Flow Through Porous Media’, Trans. Amer. Inst. Mining Met. Engrs. 198, 79–92.

    Google Scholar 

  • Klug, W. and Wippermann, F.: 1966, ‘Numerische Integrationen einer Gleichung für die turbulente Diffusion in der Atmosphäre’, Archiv. Met. Geoph. Biokl. 16, 1–11.

    Google Scholar 

  • Monin, A. S.: 1966: ‘Statistical Hydro Mechanics’, J.P.R.S. 37763.

  • Peaceman, D. W. and Rachford, H. H.: 1955, ‘The Numerical Solution of Parabolic and Elliptic Differential Equations’, J. Soc. Appl. Math. 3, 28–41.

    Google Scholar 

  • Smith, F. B.: 1957, ‘The Diffusion of Smoke from a Continuous Elevated Point Source Into a Turbulent Atmosphere’, J. Fluid Mech. 2, 49–76.

    Google Scholar 

Download references

Author information

Author notes

  1. J. Holland

    Present address: Philips Electrologica N.V., Apeldoorn, The Netherlands

Authors and Affiliations

  1. Chemical Laboratory TNO, Rijswijk (Z.H.), The Netherlands

    C. J. P. Van Buijtenen, J. Holland & D. Van Leeuwen

Authors
  1. C. J. P. Van Buijtenen
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. Holland
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. D. Van Leeuwen
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Van Buijtenen, C.J.P., Holland, J. & Van Leeuwen, D. A numerical diffusion model for continuous releases. Boundary-Layer Meteorol 5, 275–283 (1973). https://doi.org/10.1007/BF00155237

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00155237

Keywords

Search

Navigation