Volume 4 Issue 2
Jun.  2011
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Zhi-jun LI, Wen-feng HUANG, Qing JIA, Matti LEPPÄRANTA. 2011: Distributions of crystals and gas bubbles in reservoir ice during winter growth period. Water Science and Engineering, 4(2): 204-211. doi: 10.3882/j.issn.1674-2370.2011.02.008
Citation: Zhi-jun LI, Wen-feng HUANG, Qing JIA, Matti LEPPÄRANTA. 2011: Distributions of crystals and gas bubbles in reservoir ice during winter growth period. Water Science and Engineering, 4(2): 204-211. doi: 10.3882/j.issn.1674-2370.2011.02.008
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Distributions of crystals and gas bubbles in reservoir ice during winter growth period

doi: 10.3882/j.issn.1674-2370.2011.02.008
  • 1.

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, P. R. China

  • 2.College of Water Conservancy and Hydropower, Heilongjiang University, Harbin 150086, P. R. China

  • 3.Department of Physics, University of Helsinki, Helsinki FI-00014, Finland

Funds:  国家自然科学基金重点项目;the National Natural Science Foundation of China;the National Natural Science Foundation of China
More Information
  • Corresponding author: Zhi-jun LI
  • Received Date: 2010-12-13
  • Rev Recd Date: 2011-05-09
    Abstract
  • In order to understand the dominant factors of ice physical properties for ice thermodynamics and mechanics, in-situ observations of ice growth and decay processes were carried out. Two samplings were done, in the stages of fast ice growth and steady ice growth. These ice samples were used to observe ice crystals and gas bubbles in ice, and to measure ice density. Vertical profiles of the ice crystal type, ice crystal size, gas bubble shape and size, gas bubble content, as well as ice density were ontained. The results reveal that the upper part of the samples is granular ice and the lower part is columnar ice, the average grain size increases along ice depth and keeps steady within fast and steady ice growth stages; the shape of gas bubbles in ice upper layer is spherical with higher total content, and the shape in the middle and lower layers is cylinder with lower total content; the gas bubble size and content are active along with the ice growth stage; ice density decreases with the gas content increasing.

     

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