Chapter 4 Differential Relations For Viscous Flow 4.1 Preliminary Remarks Two ways in analyzing fluid motion (1)Seeking an estimate of gross effects over a finite region or control volume. Integral ()Seeking the point-by-point details of a flow pattern by analyzing an infinitesimal region of the flow
Two different points of view in analyzing problems in mechanics The Eulerian view(欧拉观点) and the Lagrangian view(拉格朗日观点) Flow classification Streamline(流线)Pathline(迹线)& Flowfield (流场)流线方程计算流谱 Surface force(表面力) and body force(质量力,体积力)