Drifting-Snow Similitude—Transport-Rate and Roughness Modeling
Abstract This paper reports on results from a series of experiments in a boundary-layer wind tunnel concerning snow-drift control adjacent to grade separations on interstate highways. A new application of similitude principles making use of theoretical relationships involving drifting particulate ma...
| Published in: | Journal of Glaciology |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
1980
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| Online Access: | http://dx.doi.org/10.1017/s0022143000010923 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010923 |
| Summary: | Abstract This paper reports on results from a series of experiments in a boundary-layer wind tunnel concerning snow-drift control adjacent to grade separations on interstate highways. A new application of similitude principles making use of theoretical relationships involving drifting particulate material is presented. The primary modeling parameters are considered to be a mass-rate parameter and an aerodynamic roughness parameter. They are derived by considerations of mass-transport rate of material in saltation and the equivalent roughness height of material in saltation. The parameters are combined empirically to correlate model snow-drift data successfully as well as to predict equivalent full-scale wind speeds and storm durations. The combined parameter has been used to compare and evaluate a variety of drift-control techniques adjacent to an interstate highway grade-separation crossing. |
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