Abstract
Recently we have proposed the simplified measuring method of flour particle size at 50 percent of cumulative weight that is established for measuring the crushed particle size of wheat quickly and simply. Therefore, we have estimated the size of particle from the flow direction length. So, it was considered whether we could approximate the particle projection form with some models. In this paper, we propose the method that the weighting coefficient for the paxticle projection form, flow direction length and aspect ratio of flour is presumed with using the suitable oval model.
