- I Only Need Part F Please 1 (118 KiB) Viewed 37 times
I Only NEED PART ( F ) PLEASE ,
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answerhappygod
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I Only NEED PART ( F ) PLEASE ,
I Only NEED PART ( F ) PLEASE ,
(70 Points) The closed-circuit wind tunnel shown in the Figure below in which incompressible air at standard conditions is to flow through the test section with a velocity of 57.5 m/s. The flow is driven by a fan that essentially increases the static pressure by the amount that is needed to overcome the head losses experienced by the fluid as it flows around the circuit. Assume the total loss head loss is equal to 172 m. Determine: Question [1] a. The velocity at each location from (1) to (9), (10 points) (15 points) b. the value of (P₁-P9), c. the power supplied to the fluid by the fan (in horsepower), (10 points) d. what motor-fan horsepower would you suggest to use in this wind tunnel. Interpret your result, (5 points) e. if the speed in the test section is doubled, this fan would not be powerful enough, as an engineer what do you suggest to do, to solve this problem, using the same fan. (20 points) (10 points) f. what is the range of Mach number that can be achieved at the inlet of test section Location Area (m²) (1) (2) (3) (5) (6) (7) (8) (9) 2 2.6 3.25 3.25 0.375 0.375 0.93 1.67 2 (3) (4) Nozzle (5) Test section Q (1) Diffuser Test section Flow-straightening screens (9) (6) (7) Vanes (8)
(70 Points) The closed-circuit wind tunnel shown in the Figure below in which incompressible air at standard conditions is to flow through the test section with a velocity of 57.5 m/s. The flow is driven by a fan that essentially increases the static pressure by the amount that is needed to overcome the head losses experienced by the fluid as it flows around the circuit. Assume the total loss head loss is equal to 172 m. Determine: Question [1] a. The velocity at each location from (1) to (9), (10 points) (15 points) b. the value of (P₁-P9), c. the power supplied to the fluid by the fan (in horsepower), (10 points) d. what motor-fan horsepower would you suggest to use in this wind tunnel. Interpret your result, (5 points) e. if the speed in the test section is doubled, this fan would not be powerful enough, as an engineer what do you suggest to do, to solve this problem, using the same fan. (20 points) (10 points) f. what is the range of Mach number that can be achieved at the inlet of test section Location Area (m²) (1) (2) (3) (5) (6) (7) (8) (9) 2 2.6 3.25 3.25 0.375 0.375 0.93 1.67 2 (3) (4) Nozzle (5) Test section Q (1) Diffuser Test section Flow-straightening screens (9) (6) (7) Vanes (8)