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Massachusetts Institute of Technology DEPARTMENT OF OCEAN ENGINEERING 2.611 SHIP POWER and PROPULSION Problem Set #2, Waterjet Problems, Due: October 5, 2006 1. In the following equation for Total Propulsive Efficiency in a waterjet, what does K_in and K_out physically represent. What is the designer using to derive values for K_in and K_out? η D 1t () 1w η p 2 μ 1 μ 1K out 2 in As a designer, how would you optimize overall efficiency in a waterjet? Hint: The above equation makes some assumptions that may not always be true and substitutes for Vj/Va.
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This note was uploaded on 02/24/2012 for the course MECHANICAL 2.611 taught by Professor Davidburke during the Fall '06 term at MIT.

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