Accession Number:

ADA007735

Title:

Simulated Snowdrift Patterns: Evaluation of Geometric Modeling Criteria for a Three Dimensional Structure.

Descriptive Note:

Special rept.,

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s):

Report Date:

1975-03-01

Pagination or Media Count:

19.0

Abstract:

Simulated drifting snow patterns were examined for a single structure using fine sand and water in a hydraulic flume. Three models of the structure were constructed at different scales and the experimental data revealed that model scale had very little effect on the areal distribution patterns. Flow velocity also had very limited influence on the drift patterns, provided the channel velocity was greater than the threshold velocity of the sand particle. Lengthening the duration of the test runs made it easier to distinguish the patterns but did not change their shape. The above experimental data suggest that modeling under the concept of Reynolds number independence is satisfactory.

Subject Categories:

  • Snow, Ice and Permafrost

Distribution Statement:

APPROVED FOR PUBLIC RELEASE