1. For a turbulent boundary layer velocity profile given by u/Ue = (y/δ)1/9 , where Ue is the freestream velocity and δ is the boundary layer thickness, calculate the displacement thickness, the momentum thickness, and the shape factor. 2. A flat plate 1 m long and 0.5 m wide is parallel to a flow of air at a temperature of 25°C. The velocity of the air far from the plate is 20 m/s. (a) Is the flow laminar or turbulent? (b) Find the maximum thickness of the boundary layer. (c) Find the overall drag coefficient CF , assuming that transition occurs at the leading edge. (d) Find the total drag of the plate if the air covers both sides.

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Q: snip

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Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.