Some Physical Aerodynamic Properties of Soybean

Some physical and aerodynamicpropertiesof soybean wre determined in order to design processing equipment and facilities. In this study, some physical propertiesof sobean were evaluated as a function of moisture content in the range of 6.7-15.3% (db). At the 6.7% (db) moisture content the average length, width, thickness, unit mass, the geometric mean diameter, arithmetic mean diameter, sphericity, porosity,true and bulk density soybean were 7.41 mm, 5.34 mm, 121.76 g, 5.62 mm, 5.75 mm, 75.0, 51.0, 1062.6 and 804.8 kg m-3 respectively. Corresponding values at 15.3% (db) moisture content were 9.57 mm, 6.75 mm, 5.17 mm, 223.65 g, 5.62 mm, 5.75 mm, 72.0 %, 44.2%, 1086.4 and 689.3 kg m-3 respectively. In soybean, terminal velocity increased from 7.13 to 9.24 m sµ-1and the coefficient of static friction increased linealy ageinist all the tested surfaces as the moisture content increased.