著者

松本 憲治 太田 光浩 岩田 修一

出版者

一般社団法人 日本レオロジー学会

雑誌

日本レオロジー学会誌 (ISSN:03871533)

巻号頁・発行日

vol.44, no.3, pp.159-166, 2016-07-15 (Released:2016-07-15)

参考文献数

4

被引用文献数

1

---

Three-dimensional numerical simulations of the flow dynamics of milk using a volume-of-fluid (VOF) method were carried out in order to optimize the process in which milk is filled into a gable top carton with a volume of 1,000 mL. In the numerical simulations, the shear-thinning property of milk was modeled with the Carreau-Yasuda model. The sensitivity of the milk flow dynamics due to the prescribed lifting motion of the gable top carton and due to the filling speed (the number of milk cartons filled per hour) was investigated. When there was no prescribed lifting motion, it was computationally shown that milk which impinged on the bottom of the carton largely jumped and flowed outside the carton. In other words, it was found that a prescribed lifting motion can significantly reduce the amount of milk that escapes the carton. Also, it was found that the efficiency for filling a milk carton was sensitive to the filling speed. The optimum filling speed determined from fully three-dimensional numerical simulations was found to be consistent with previous investigations that used two-dimensional numerical simulations.