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Wind-tunnel simulation of field dispersion tests (by the U.K. health and safety executive) of water-spray curtains

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Abstract

Field trials of water-spray curtain tests performed by the (British) Health and Safety Executive and designated by HSE 41 and HSE 46 were modeled at a scale ratio of 1:28.9 in an atmospheric boundary-layer wind tunnel. The tests confirmed that dense clouds of carbon dioxide gas were significantly diluted by additional air entrained by the water curtain. Linear and logarithmic scatter diagrams of concentrations measured at equivalent scaled points produced correlations of 0.87 and 0.97, respectively. Results confirm the use of Froude-number modeling of both the dense gas cloud and water spray droplet fluid dynamics.

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References

  • Heskestad, G., Meroney, R. N., Kothari, K. M., and Neff, D. E.: 1983, ‘Effectiveness of Water Spray Curtains in Dispersing LNG Vapor Clouds’, Proceedings of the American Gas Association Transmission Conference, 2–4 May. 1983. 40 pp.

  • Meroney, R. N., Neff, D. E., and Cermak, J. E.: 1978, ‘Wind-Tunnel Modeling of LNG Spills’, Proceedings of the American Gas Association Transmission Conference, 8–10 May, 1978, Montreal, Canada, 26 pp.

  • Moodie, K., Taylor, G., and Beckett, H.: 1981, ‘Water Spray Barrier Trials: 181, Test Parameters and Concentration Data for Trials 35–48'’, Health and Safety Executive Report FM/15/81/3, 60 pp.

  • Moore, P. A. C. and Rees, W. D.: 1981, ‘Forced Dispersion of Gases by Water and Steam, The Containment and Dispersion of Gases by Water Sprays’, Northwestern Branch, Institution of Chemical Engineers, Manchester, U.K., Symposium Papers 1981, No. 5, pp. 4.1–4.14.

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  • Neff, D. E. and Meroney, R. N.: 1981, ‘The Behavior of LNG Vapor Clouds: Wind-Tunnel Tests on the Modeling of Heavy Plume Dispersion’, Gas Research Institute Report 80/0145, 120 pp.

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Authors and Affiliations

  1. Fluid Mechanics and Wind Engineering Program, Civil Engineering Department, Colorado State University, 80523, Fort Collins, CO, USA

    R. N. Meroney, D. E. Neff & G. Heskestad

Authors
  1. R. N. Meroney
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  2. D. E. Neff
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  3. G. Heskestad
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Additional information

Professor, Colorado State University.

Research Associate, Colorado State University.

Senior Scientist, Factory Mutual Research Corp., Boston, Mass.

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Meroney, R.N., Neff, D.E. & Heskestad, G. Wind-tunnel simulation of field dispersion tests (by the U.K. health and safety executive) of water-spray curtains. Boundary-Layer Meteorol 28, 107–119 (1984). https://doi.org/10.1007/BF00119459

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  • DOI: https://doi.org/10.1007/BF00119459

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