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https://hdl.handle.net/11681/5928| Title: | Isothermal flow of air through snow of variable permeability |
| Authors: | Yen, Yin-Chao. Tien, Chi, 1930- Bender, James A. (James Arthur), 1923- |
| Keywords: | Snow Permeability Air flow Fluid flow Mathematical analysis Mathematical models |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 143. |
| Description: | Research Report Summary: Snow is a permeable material, and any problem concerning heat flow and mass transfer must take into account the movement of air in the material. The circulation of air through a snow pack has been found to be effective for the cooling of undersnow structures such as those in Greenland. A simplified model is proposed to describe the physical system. The simplifications are made on the basis of field observations as well as considerations from a mathematical point of view. The mixed boundary value problem is solved numerically to account for the effect of variable permeability. The expression for pressure distribution is given as a function of position and the total air flow rate is obtained in terms of operating variables. An illustrative example based on actual permeability data is given to indicate the procedures. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/5928 |
| Appears in Collections: | Research Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-Research-Report-143.pdf | 773.97 kB | Adobe PDF |  View/Open |