Numerical analysis of cleaning wind in a winnowing chamber using the finite volume method

In order to improve the cleaning accuracy, it is necessary to investigate the flying characteristics of grain and MOG (material other than grain), and also necessary to control appropriate wind velocity for cleaning function. Especially, understanding the distribution of wind vectors in the cleaning...

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Bibliographic Details
Published inNōgyō Kikai Gakkaishi Vol. 67; no. 1
Main Authors Matsui, M.(Kyushu Univ, Fukuoka (Japan)), Inoue, E, Mori, K, Furuno, Y, Hirai, Y
Format Journal Article
LanguageJapanese
Published 01.01.2005
Subjects
AIR CLASSIFICATION
AVENTAMIENTO
CLASIFICACION POR AIRE
CLASSEMENT PAR AIR
COMBINE HARVESTERS
MEASUREMENT
MEDICION
MESURE
METHODE
METHODS
METODOS
MOISSONNEUSE BATTEUSE
SEGADORAS-TRILLADORAS
VANNAGE
WINNOWING
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Summary:In order to improve the cleaning accuracy, it is necessary to investigate the flying characteristics of grain and MOG (material other than grain), and also necessary to control appropriate wind velocity for cleaning function. Especially, understanding the distribution of wind vectors in the cleaning chamber is important for improving the cleaning. In this study, a fluid dynamics model in a simplified winnower was constructed, and numerical analysis was conducted using finite volume method (FVM) for clarifying the distribution, and attempted to generate visualization of the wind vectors in the simplified model as wind tunnel. In the analysis, the wind was assumed steady two-dimensional laminar flow. The obtained results were compared with results of particle image velocimetry (PIV) and conventional measurement method using anemometer. The validity of this method was clarified by the obtained results.
Bibliography:2006001739
N20
U30
ISSN:0285-2543
DOI:10.11357/jsam1937.67.53