附件24.2 Chapter2 Fundamental Hydranlie Fluid Mechanics 女。 2.2.4 Effect of fluid pressure on curved surfaces (1)When the wall is plane F=P.A (2)When wall is a curved surface: Example 2-2.Fig.2-8 shows a cylindrical member of inside radii r of length/. Calculation:the effect force F on the right segment of the cylinder at x direction Fig.2-8 Effect force on the inuer surface of the cylinder Homework:pp.349 Chapter 2,2-1,2-2,2-3,2-4. 2.3 Hydrodynamies(液体动力学) Chapter2 Fundamental Hydraulic Fluid Mechanics The equations of continuity,Bernoulli and momentum are basic motion equations that describe the dynamics laws in flowing fluid 2.3.1 The equation of continuity-conservation of mass according to the conservation of mass. A4=P2A2214) incompressible flow.P=P2.(2-15) VA=VA Fig.2-9 sketch of conservation Or q==v242 =v.4=constant (2-16) Formula(2-16)is the equation of flow coutinuity 附件 24.2 Homework: pp.349 Chapter 2, 2-1, 2-2, 2-3, 2-4. 2.3 Hydrodynamics （液体动力学） 16