1968 Volume 29 Issue 4 Pages 203-208
(1) In the case that crop particles fell on the state of grid arrangements, and the stop-over interruption of behind stream in air flow path happened, the author analysed the equation of stream line using representation for two dimensional flow. As the results, the turbulence of flow lines was found.
(2) These streams originated under the slow air velocity, pretty fast drop velocity and drop of weighty crops. The turbulence of flow lines was not always injurious influence on the selection of crops, rather, these flows had better excellent conveying velocities.
(3) Next, as the results of analysis for the considerations of air velocity on three dimensional flows, the most exact and reliable value was air velocity of the center axis of rectangular flow path section.
(4) The contour lines analytical method was used on this study, and the method was experimented in the practical grain separating path. If the density of contour lines decreased, and equal uniform air velocity happened, this method would be more effective.
