各向异性粘弹流体材料拉伸流动研究

Research on the elongational flow of anisotropic viscoelastic fluid materials

根据物质客观性原理推导了各向异性粘弹流体材料拉伸流动本构关系;拉伸粘度与拉伸速率之间变化关系是研究纺丝流动重要参数,得到了不同拉伸速率下无量纲拉伸粘度随剪切速率变化的曲线,该数据将大大扩大其应用范围,广泛地应用于纺织工业中.

According to the principle of material objectivity,the constitutive relation of the elongational flow of anisotropic viscoelastic fluid materials was deduced. The change relationship between the tensile viscosity and the tensile velocity is a vital factor,and the curve along which the dimensionless tensile viscosity varies at different tensile velocities was obtained. The results will greatly extend the range of the application and can be widely used in textile industry.