Accession Number : AD0645275

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

Corporate Author : DARTMOUTH COLL HANOVER N H

Personal Author(s) : Edgar,Clement B.

Report Date : SEP 1966

Pagination or Media Count : 61

Abstract : 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)

Descriptors :   (*SNOW, SUBLIMATION), (*SUBLIMATION, *MASS TRANSFER), SURFACES, CONVECTION(HEAT TRANSFER), TURBULENCE, GAS FLOW

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE