Engineering, 09.04.2020 18:14 manou76
Consider an infinite-span wing with a NACA 0006 airfoil section and a chord length of 1 m. The wing is at an angle of attack of 4°.
a. Estimate the wing lift and drag per unit span in airflow with velocity 50 m/s at standard sealevel conditions.
b. If the same wing is flying at an altitude 5 km with velocity 200 m/s, what is the lift per unit span?
c. Now consider a finite-span wing with the same profile, chord and attack angle flying at 5 km altitude with a speed of 50 m/s. The wing aspect ratio is 5, area is 5 m^2 , and span efficiency factor is 0.9. Determine the wing lift.
Answers: 2
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 03.07.2019 15:10
Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.
Answers: 1
Engineering, 04.07.2019 18:10
What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.
Answers: 2
Engineering, 04.07.2019 18:10
Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.
Answers: 3
Consider an infinite-span wing with a NACA 0006 airfoil section and a chord length of 1 m. The wing...
Biology, 21.02.2021 01:40
English, 21.02.2021 01:40
Health, 21.02.2021 01:40
Computers and Technology, 21.02.2021 01:40
Chemistry, 21.02.2021 01:40
Biology, 21.02.2021 01:50
Mathematics, 21.02.2021 01:50
English, 21.02.2021 01:50
Mathematics, 21.02.2021 01:50