推导了可压缩流动旋涡动力学基本方程，并分析了其基本性质。
The Vortex Dynamics Equation is developed for compressible flow and its characteristics are analyzed.
应用粘性流体动力学基本方程，分析了聚合物物料在螺槽中的流动。
The flow of rubber compound in the screw channel was analyzed with the basic equation of the viscous fluid kinetics.
由流动的连续性引进了流函数，使流体动力学基本方程的未知量的个数减少一个；
Because of the continuity of the flow, the stream function is introduced and it makes that the numbers of the fluid dynamical basic equation is cut off one.
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