A liquid flows down an inclined plane surface in a steady, fully developed laminar flow of thickness h. a) Simplify the continuity equations and Navier-Stokes equations to model this flow field. Clearly state all assumptions. b) Obtain expressions for the liquid velocity profile, the volume flow rate and the average velocity. c) Relate the liquid thickness to the volume flow rate per unit depth of surface normal to the flow. d) Calculate the volume flow rate in a film water h = 1 mm thick, flowing on a surface b = 1 m wide, inclined at e = 15° to the horizontal. (Awater = 1000 kg/m, µ water 1.0 x 10° kg/ms, g = 9.81 m/s³) h =1 mm 8 = 15° Width of surface = 1 m Figure 03

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Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing.