According to viscous fluidmechanicsequation, simulating calculations that focus on properties of composites and geometry of screw were developed.
用粘性流体力学基本方程进行了模拟计算，计算部分着重分析物料特性参数及螺杆主要几何参数。
2
First, we realize the mathematic model through getting the parameterized equation by analyzing the fluidmechanics and make use of Bezier curve to approximate stream curve.
首先，我们运用流体力学的原理，分析推导出流曲线曲面的参数方程，实现了挤压型腔的数学建模。
3
Finally, fluid density can be obtained from ground system with Bernoulli's equation in fluidmechanics.