HEAT TRANSFER CHARACTERISTICS OF MELTING AND REFREEZING A DRILL HOLE THROUGH AN ICE SHELF IN ANTARCTICA.

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作者：
Yen, Yin-Chao
Tien, Chi
机构：
来源：
CRREL Report (US Army Cold Regions Research and Engineering Laboratory) | 1976年 / 76-12期
关键词：
DRILLING; -; ICE;
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摘要：
The heat transfer processes associated with melting and refreezing a drill hole 500 m in deph and 0. 150 m in initial radius through an ice shelf were approximately analyzed. The results were expressed in graphical form showing the time available for experimentation under the hole as a function of heating duration and heating strength. It was found that the refreezing of the drill hole had a much slower rate than the melting of the hole.
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