A rotary mixer consists of two 1-mlong half-tubes rotating around a central arm, as in Fig. P7.94.

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A rotary mixer consists of two 1-mlong half-tubes rotating around a central arm, as in Fig. P7.94. Using the drag from Table 7.2, derive an expression for the torque T required to drive the mixer at angular velocity Ω in a fluid of density ρ. Suppose that the fluid is water at 20°C and the maximum driving power available is 20 kW. What is the maximum rotation speed Ω r/min?

A rotary mixer consists of two 1-mlong half-tubes
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Optics

ISBN: 978-0133977226

5th edition

Authors: Eugene Hecht

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