RESEARCH PAPER
Friction force reversal in a model grain bin during emptying
 
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1
Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-236 Lublin, Poland
2
Agricultural Engineering Department, University of Kentucky, Lexington Kentucky, 40546-0075, USA
Publication date: 2020-09-25
 
Int. Agrophys. 1992, 6(3-4): 167–171
 
ABSTRACT
A change in the direction of the resultant friction force against the bin wall was observed in the final stage of discharge. The obtained relationship between the resultant friction force and the grain height results from the downward friction force of flowing grain and the upward friction force of the dead zone of the bin.
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