Sensitivity of Soil Coupled Heat and Mass Transfer Governing Equations to Hydraulic and Thermal Conductivities
محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 3، شماره: 3
سال انتشار: 1380
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 60
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شناسه ملی سند علمی:
JR_JASTMO-3-3_002
تاریخ نمایه سازی: 22 آبان 1402
چکیده مقاله:
A pressure-based coupled heat and mass transfer model was used to simulate temperature
and soil suction in a drying process within a clay soil column. Closed form functions
were used for all parameters needed in the governing equations. Model predictions were
compared with experimental data using the mean relative percentage deviation method.
Thermocouples and mini-gypsum blocks were used to monitor the data collected hourly
at different depths of the soil column. The model showed very high sensitivity to the proposed
hydraulic conductivity function, while lower sensitivity was found for the proposed
thermal conductivity function. This result highlights the importance of a proper hydraulic
conductivity estimate while a rough estimate for thermal conductivity would have no significant
adverse effect on the predicted values.
کلیدواژه ها:
نویسندگان
A. Keyhani
Department of Power and Machinery, Faculty of Agriculture, University of Tehran, Karaj, Islamic Republic of Iran.
D. Wulfsohn
Institute for Maskinteknik, Aalborg Universitet, Potoppianstraede ۱۰۱, ۹۲۲ Aalborg Oest, Denmark.