Journal
JOURNAL OF COLD REGIONS ENGINEERING
Volume 15, Issue 1, Pages 60-66Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)0887-381X(2001)15:1(60)
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A counterrotating flume housed in a cold room was used to study anchor ice growth. The rate of anchor ice growth was monitored and quantified over time using a digital image processing system. The laboratory experiments were conducted over Froude numbers ranging from 0.18 to 0.76 using air temperatures of -15 and -20 degreesC. The data suggest that the rate of anchor ice growth and the density of the resulting anchor ice have a dependence on the Froude number. The rate of anchor ice growth is observed to he a maximum at a Froude number of approximately 0.27. The qualitatively observed density of the anchor ice increases with increasing Froude number. The release of anchor ice is related to the Reynolds number: anchor ice was released for Reynolds number less than approximately 42.000, but remains attached for larger Reynolds numbers.
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