期刊论文

Zheng, X.(zhengxiao580405@163.com)

中文

农业工程学报

1002-6819

2006

22

11

135-140

10.3321/j.issn:1002-6819.2006.11.028

湖北省教育厅重点科研计划项目（2002A01008）； 武汉工业学院重点科研项目（2002A012）；

本校为第一且通讯机构

考虑植物油料的可变形和流变,植物油料的压榨过程是一个渗流场和流变场耦合渗流问题.基于流固耦合渗流理论建立植物油料压榨过程的模拟模型,采用有限差分法和有限元法交替求解渗流场和流变场.数值模拟了压榨过程中菜籽和菜籽仁油料的位移、菜籽仁孔隙流体压力分布与消散、有效应力分布与变化.菜籽和菜籽仁的位移数值解和实测值比较吻合,尤其在中、后时段.

In view of interaction of fluid flow field and rheology field, the numerical simulation model in pressing of oil plant was developed on the basis of the theory of fluid-solid interaction. The interaction numerical method for the fluid flow field and rheology field was proposed, which adopted finite difference and finite element method. The deformations of rapeseed and rapeseed kernel in pressing were simulated. The distribution and disappearance of pore pressure in rapeseed kernel, and the distribution of effective stress of rapeseed kernel were numerically simulated and predicted. The results...