9.5 Repeat Problem 9.1 if the object is a cone (made by ro- tating the equilateral...

  

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9.5 Repeat Problem 9.1 if the object is a cone (made by ro- tating the equilateral triangle about the horizontal axis through its tip) rather than a triangular bar. 9.5 FOR BOTH 9.1 and 9.5: If symmetry from top to bottom did not exist, and if object was blunted so that the presented area was .2 ft² while the characteristic area for lift was 3 ft² ft²,what would the lift-drag ratio be? 9.1 Assume that water flowing past the equilateral trian- gular bar shown in Fig. P9.1 produces the pressure distributions indicated. Determine the lift and drag on the bar and the cor- responding lift and drag coefficients (based on frontal area). Ne- glect shear forces. U=5 ft/s p=0.5 p0² Linear distribution b= length = 4 ft FIGURE P9.1 p=-0.25 pu² 0.1 ft b 11 9.5 Repeat Problem 9.1 if the object is a cone (made by ro- tating the equilateral triangle about the horizontal axis through its tip) rather than a triangular bar. 9.5 FOR BOTH 9.1 and 9.5: If symmetry from top to bottom did not exist, and if object was blunted so that the presented area was .2 ft² while the characteristic area for lift was 3 ft² ft²,what would the lift-drag ratio be? 9.1 Assume that water flowing past the equilateral trian- gular bar shown in Fig. P9.1 produces the pressure distributions indicated. Determine the lift and drag on the bar and the cor- responding lift and drag coefficients (based on frontal area). Ne- glect shear forces. U=5 ft/s p=0.5 p0² Linear distribution b= length = 4 ft FIGURE P9.1 p=-0.25 pu² 0.1 ft b 11

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95 Without symmetry and with a blunted shape resulting in a presented area of 02 ft the lift and drag coefficients will be different from those of a s... View the full answer