I want to determine the geometric shape factors ga, gb and gc of air-filled pore space to calculate the weight factor of the air phase in de Veries model. i used 3 different unsaturated porous media (silty sand, composts and compost-mixed soils (compost:soil=1:5 and 1:10 ratios ). the air-filled pore space geometry is different in these materials and make complex geometry. I have confused to determine geometric shape factors. I determined the solid fraction geometric shape factors and calculated weight factors (ks) for different materials based on there shape.
Excuse me. The answer to your question will be a scientific discovery
Dear Sir, Thank you so much for your kind response. I calculated the thermal conductivities of soil and 3 different composts based on their volumetric fractions and considering the different solid fraction geometry. I got different assumptions and defined rules for the calculation(specially for air filled pore space) and I was able to compare the predicted and the measured values with RMSE and bias 0.06, 0.03 for soil, 0.004 and 0.006 for compost A, 0.008 and 0.062 for compost B and 0.005 and 0.047. I want to confirm and continue it.
Dear Lady! Excuse may English. I recommend the monograph of Russian scientists: Nerpin S. V., Chudnovsky A. F. Soil Physics (1967 year) to the calculation of thermal conductivity of porous media (any of soils). Unfortunately in Russian. Probably this monograph familiar to you. Then I'm sorry
Dear Sir, Thank you so much for your kind support and comments. I will follow your suggestion.
Best Regards
Ayesha
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