Modeling of dynamic extrusion swelling using cross model

摘要：

The transient axisymmetric extrusion swelling ow of a high viscosity uid was simulatedusing FVM method with VOF technique in the present paper. The rheological property of the uidwas characterized by Cross model on the basis of the shear property of IUPAC-LDPE melt. Thecalculation was verified by comparing against the computational swelling of Newtonian uid reportedpreviously. The simulated swell ratio of 1.085 was obtained using Cross model and VOF method at theshear rate of 10 s-1, which is higher than the result of 1.04 calculated by the steady FEM numericalmethod. The possible causes were analyzed.

关键词： transient extrusion swelling cross-type uid VOF method numerical calculation

作者: S.X.Huang X.Chen C.J.Lu

作者单位: Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200030, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）