QUASI-STEADY TEMPERATURE GRADIENT METAMORPHISM IN IDEALIZED, DRY SNOW
作者:
Mark Christon,
PatrickJ. Burns,
RichardA. Sommerfeld,
期刊:
Numerical Heat Transfer, Part A: Applications
(Taylor Available online 1994)
卷期:
Volume 25,
issue 3
页码: 259-278
ISSN:1040-7782
年代: 1994
DOI:10.1080/10407789408955948
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A three-dimensional model for heat and mass transport in microscale ice lattices of dry snow is formulated consistent with conservation laws and solid-vapor interface constraints. A finite element model that employs continuous mesh deformation is developed, and calculation of the effective diffusion rates in snow, metamorphosing under a temperature gradient, is performed. Results of the research provide basic insight into the movement of heat and water vapor in seasonal snowcovers. Agreement between the numerical results and measured data of effective thermal conductivity is excellent. The enhancement to the water vapor diffusion rate in snow is bracketed in the range of 1.05-2.0 times that of water vapor in dry air
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