An axial flow water pump impeller consists of 5 blades with chord length 3 in., hubradius 4.5 in. and tip radius 6.5 in. The impeller isrotating at 1800 rpm and the lift anddrag coefficients are given as 1.32 and 0.027 respectively. If the inlet and exit bladeangles are 50° and 25° respectively, and the stagger angle is 30°, determine:a) Angle of attackb) Lift and drag forces (Ibf)c) Exit flow angle

As a rule, hub stream impellers have edges which make a point of under 90° to the plane of turn and…

Answered: An axial flow water pump impeller…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Long flights at midlatitudes in the Northern Hemisphere encounter the jet stream, an eastward airflow that can affect a plane's speed relative to Earth's surface. If a pilot maintains a certain speed relative to the air (the plane's airspeed), the speed relative to the surface (the plane's ground speed) is more when the flight is in the direction of the jet stream and less when the flight is opposite the jet stream. Suppose a round-trip flight is scheduled between two cities separated by 3200 km, with the outgoing flight in the direction of the jet stream and the return flight opposite it. The airline computer advises an airspeed of 810 km/h, for which the difference in flight times for the outgoing and return flights is 72 min. What jet-stream speed is the computer using?
Consider a wing with a linear AR of 8.0 and a taper of 0.5, the wing has a wingspan of 196 ft and a thin profile, a CL max of 1.6, estimate the maximum lift coefficient of the wing and the position in the chord of the profile when it enters in loss. Consider an arrow angle (1/4 of the chord) of 30 °
2.4 A 2650-lb car is traveling at sea level at a constant speed. Its engine is running at 4500 rev/min and is producing 175 ft-lb of torque. It has a drivetrain efficiency of 90%, a drive axle slippage of 2%, 15- inch-radius wheels, and an overall gear reduction ratio of 3 to 1. If the car's frontal area is 21.5 ft², what is its drag coefficient?

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