AN INVESTIGATION OF MASS TRANSFER BY SUBLIMATION FROM A SNOW-SURFACE

• Main Author: Edgar,Clement B.
• Other Authors: DARTMOUTH COLL HANOVER N H
• Format: Text
• Language: English
• Published: 1966
• Subjects: Snow; Ice and Permafrost; (*SNOW; SUBLIMATION); (*SUBLIMATION; *MASS TRANSFER); SURFACES; CONVECTION(HEAT TRANSFER); TURBULENCE; GAS FLOW; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/AD0645275; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0645275

The problem of mass transfer by sublimation from a snow surface subjected to radiation and forced convection is investigated. The effect of irradiation from a nonisothermal source on the mass transfer rate is studied. Forced convection of the 'flat plate' and 'entrance region' type is investigated. Entrance effects are seen to have a negligible influence on the mass transfer rate. The effect of the nonisothermal snow surface is shown to be negligible. A thermal network analysis is developed to predict the mass transfer rate due to the combined effects of radiation and forced convection. Experimental results for mass transfer from a snow surface in the entrance region of a rectangular duct show good agreement with the predicted mass transfer rate. (Author)