Engineering, 16.04.2020 04:53 NetherisIsTheQueen
An airplane flies at a speed of 539 mph at an altitude of 10,000 ft. If the boundary layers on the wing surfaces behave as those on a flat plate, (a) estimate the extent of laminar boundary layer flow along the wing. Assume a transitional Reynolds number of Rexcr = 5 x 105. If the airplane maintains its 539 -mph speed but descends to sea-level elevation, (b) estimate the extent of the laminar boundary layer flow. (c) Will the portion of the wing covered by a laminar boundary layer increase or decrease compared with its value at 10,000 ft?
Answers: 1
Engineering, 04.07.2019 18:20
Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
Answers: 1
Engineering, 04.07.2019 18:20
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
Answers: 2
Engineering, 04.07.2019 18:20
Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
Engineering, 04.07.2019 19:20
Apreheater involves the use of condensing steam at 100°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?
Answers: 3
An airplane flies at a speed of 539 mph at an altitude of 10,000 ft. If the boundary layers on the w...
Mathematics, 05.10.2020 15:01
Chemistry, 05.10.2020 15:01
Mathematics, 05.10.2020 15:01
History, 05.10.2020 15:01
Arts, 05.10.2020 15:01
Computers and Technology, 05.10.2020 15:01
Advanced Placement (AP), 05.10.2020 15:01
Mathematics, 05.10.2020 15:01
Advanced Placement (AP), 05.10.2020 15:01
Physics, 05.10.2020 15:01