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Du Wenjing, Zhang Chaoneng, Ning Ping, Yang Lijuan. Experimental study on trace of dense gas dispersion in plateau cities[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1101-1105.
Citation: Du Wenjing, Zhang Chaoneng, Ning Ping, Yang Lijuan. Experimental study on trace of dense gas dispersion in plateau cities[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1101-1105.
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Experimental study on trace of dense gas dispersion in plateau cities

  • 1.

    Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093, China

  • 2.

    Lincang Research Institute of Environmental Science,Lincang 677000, China

  • Received Date: 29/10/2012
    Accepted Date: 04/09/2012
    Available Online: 18/03/2013
    Fund Project:
  • This paper presents the wind-tunnel experimental result of dense gas dispersion in plateau cities. The result shows that the concentration of dense gas is higher near the ground than the other heights, and the change is not linear with the increasing of wind speed, and the change of concentration increases first then decreases. Thus, the concentration of dense gas reaches a maximum under a value of wind speed, which is dangerous wind speed. The value of dangerous wind speed which is calculated by the way of curve fitting is similar to the result which is surveyed by wind tunnel experiment. In addition, the value of viscous coefficient also reaches maximum under the dangerous wind speed, and it blocks the dispersion of dense gas with the increase of viscous coefficient.
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Experimental study on trace of dense gas dispersion in plateau cities

  • Received Date: 29/10/2012
  • Accepted Date: 04/09/2012
  • Available Online: 18/03/2013
Fund Project:

Abstract: This paper presents the wind-tunnel experimental result of dense gas dispersion in plateau cities. The result shows that the concentration of dense gas is higher near the ground than the other heights, and the change is not linear with the increasing of wind speed, and the change of concentration increases first then decreases. Thus, the concentration of dense gas reaches a maximum under a value of wind speed, which is dangerous wind speed. The value of dangerous wind speed which is calculated by the way of curve fitting is similar to the result which is surveyed by wind tunnel experiment. In addition, the value of viscous coefficient also reaches maximum under the dangerous wind speed, and it blocks the dispersion of dense gas with the increase of viscous coefficient.

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