

Please explain clearly 2. Consider the following wind tunnel: Vs 200 ft/s (6) (7) Test section Flow-straightening screens Fan Estimate the value of p1-p9 and the horsepower supplied to the fluid by t...
5. The closed-circuit wind tunnel flows air with a velocity of 200 ft/s [between sections (5) and (6)] at standard condition. The picture and diagram of the wind tunnels are provided below. The flow is driven by a fan that essentially increases the static pressure by the amount pı - p9 that is needed to overcome the head losses experienced by the fluid as it flows around the circuit. Determine the pressure rise (pi - ps). Conditions) Assume air is...