(d) A round bar shown in Figure 2b is mounted on the end of a motor shaft at its central fixing point. The bar is used to provide an aerodynamic load on the motor. By assuming that the air flow around the shaft is everywhere turbulent, calculate the power absorption by the shaft for a rotational speed of 2000 revolutions per minute. The geometry is d=0.1m, L=1.0m. Explain any assumptions that you make and justify all parameter choices. d L/2 O Central fixing Figure2b: Power Absorption Bar

(d) A round bar shown in Figure 2b is mounted on the end of a motor shaft at its central fixing point. The bar is used to provide an aerodynamic load on the motor. By assuming that the air flow around the shaft is everywhere turbulent, calculate the power absorption by the shaft for a rotational speed of 2000 revolutions per minute. The geometry is d=0.1m, L=1.0m. Explain any assumptions that you make and justify all parameter choices. d L/2 O Central fixing Figure2b: Power Absorption Bar

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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