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It is known that for flow around blunt bodies at very high Reynolds numbers,the ribution at the win ward is very similar to the potential solution,while a the flow is detached.To evaluate the aerodynamic drag of a cable of circular section of radiusr=1cm(see figure 1)in a flow of uniform upstream velocity U=50m/s,densityp=1.2 kg/m3 and static pressure p=100kPa,it is assumed that the front side of the cable(windward<2)has a pressure coefficient Cp= 1-4sin0,while in the rear side (leeward)the flow is detached and the pressure coefficient is the value of the Cpat the detachment point(=2). U WINDWARD LEEWARD r P.P Figure 1:Flow around a circular cable a)Determine the aerodynamic drag coefficient by integrating Cp along the surface of the body b)Determine the drag force acting on the ylinder Problem5 (15%) High-lift devices are mechanisms intended to add lift during take-off and landing.The most common types ofhigh-lift devices are flaps and slats(see figure 1) It is known that for flow around blunt bodies at very high Reynolds numbers, the pressure distribution at the windward is very similar to the potential solution, while at the leeward, the flow is detached. To evaluate the aerodynamic drag of a cable of circular section of radius r =1cm (see figure 1) in a flow of uniform upstream velocity U = 50m/s, density   =1.2 kg/m3 and static pressure  p =100kPa, it is assumed that the front side of the cable (windward 0<  <  /2) has a pressure coefficient Cp = 1- 4  2 sin , while in the rear side (leeward  /2<  <  ) the flow is detached and the pressure coefficient is the value of the Cp at the detachment point (  = /2) . Figure 1: Flow around a circular cable a) Determine the aerodynamic drag coefficient by integrating Cp along the surface of the body. b) Determine the drag force acting on the cylinder. Problem 5 (15%) High-lift devices are mechanisms intended to add lift during take-off and landing. The most common types of high-lift devices are flaps and slats (see figure 1)
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