Frazil and Skim Ice Initiation in Stream - Results of Laboratory Investigation

The research project is the continuation of earlier studies and it is based on the hypothesis that frazil is formed if the water temperature t sub v < 0 C, the temperature on the water surface t sub h < -0.15 C, and (3) the cross- sectional water velocity v > 0,067(MC) to the 0.305 power R...

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Bibliographic Details
Main Author: Comati, Jerry C.
Other Authors: ARMY RESEARCH DEVELOPMENT AND STANDARDIZATION GROUP (UNITED KINGDOM) FPO NEW YORK 09510
Format: Text
Language:English
Published: 1991
Subjects:
Snow
Ice and Permafrost
*TEMPERATURE
WATER
RADIUS(MEASURE)
COEFFICIENTS
HYPOTHESES
HYDRAULICS
LABORATORY TESTS
SURFACES
*ICE FROMATION
*FRAZIL ICE
*SKIM ICE
SURFACE TEMPERATURE
CHANNELS(WATERWAYS)
AIR WATER INTERACTIONS
CHEZY COEFFICIENT
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA242847
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA242847
Description
Summary:The research project is the continuation of earlier studies and it is based on the hypothesis that frazil is formed if the water temperature t sub v < 0 C, the temperature on the water surface t sub h < -0.15 C, and (3) the cross- sectional water velocity v > 0,067(MC) to the 0.305 power R to the 0.5 power, where C = Chezy coefficient, M = 0.7C+6, R = hydraulic radius. The object of the research project is to verify the mathematically formulated conditions and to establish a theory of frazil and skim ice formation.

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