Determine the speed and torque required to drive an agitator of 675 mm diameter rotating in air if similar agitator of diameter 225 mm, rotating at 23 rev/s in water requires a torque of 1.1 Nm. Given Pair = 1.23 kg/m³, Pwater = 1000 kg/m³, Mair = 1.86 x 10-5 Pa-s, Pwater = 1.1 x 10-3 Pa-s. Obtain your result after arriving at the relevant group of dimensionless terms and the corresponding similarity law, considering that power required as a function of the speed, diameter of agitator, the fluid density and viscosity of fluid in which agitator rotates.

Determine the speed and torque required to drive an agitator of 675 mm diameter rotating in air if similar agitator of diameter 225 mm, rotating at 23 rev/s in water requires a torque of 1.1 Nm. Given Pair = 1.23 kg/m³, Pwater = 1000 kg/m³, Mair = 1.86 x 10-5 Pa-s, Pwater = 1.1 x 10-3 Pa-s. Obtain your result after arriving at the relevant group of dimensionless terms and the corresponding similarity law, considering that power required as a function of the speed, diameter of agitator, the fluid density and viscosity of fluid in which agitator rotates.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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