Author(s): George D. Ashton
Linked Author(s): George Ashton
Keywords: No Keywords
Abstract: The conditions under which a floating fragment of ice is either entrained under the upstream edge of a downstream ice cover or accumulated upstream are examined in detail. The effects of the geometry of the leading edge and of the arriving fragments on the critical Froude number for entrainment are determined and provide criteria for modeling studies and for the design of stable channels in river ice covers. The mathematical model considers both flow depth and thickness Froude effects as well as the thickness-length ratio of the blocks and the specific gravity.
Year: 1974