Use the data of Problem 3.8 to find the phase differences of the Loewy function for a double bladed rotor where only the distance between the blades are counted. Make the same computations for amplitude variations.

Fig. 3.15

\(\theta(s)\) variation

Problem 3.8

For the returning wake problem, interpret the phase angles for, \(\omega / \Omega\) values being equal to an integer, integer plus a quarter and integer plus one half. Take \(h / b=3\). Find the amplitude variations of the function for the same changes in \(\omega / \Omega\).

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0 4 8 S