Air velocity distribution during the grain aeration in a silo
2015
Babić, Mirko (Faculty of Agriculture, Novi Sad (Serbia)) | Babić, Ljiljana (Faculty of Agriculture, Novi Sad (Serbia)) | Radojčin, Milivoj (Faculty of Agriculture, Novi Sad (Serbia)) | Pavkov, Ivan (Faculty of Agriculture, Novi Sad (Serbia)) | Stamenković, Zoran (Faculty of Agriculture, Novi Sad (Serbia))
There are different instances of grain aeration in a silo. Six models are displayed for cylindrical grain storages (silos): four models with coaxial air streaming and two models with radial air streaming. The airflow analysis was based on the use of a cylindrical coordinate system. This system facilitates the simplification of the mathematical problem. Air velocity changes in the coaxial streamlines stemfrom the equality of the total air pressure drop in the flow through the layer of grain. Radial airflow is directed from the axis or to the axis of the silo cells. Air velocity is higher near the axis, and the lowest on the peripheral perforated wall. In this case, the continuity equation is crucial because it determines the value of the velocity at various distances from the center.
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