A sketch of the arithmetic mean radius blade sections of an axial-flow water turbine stage is shown

Question:

A sketch of the arithmetic mean radius blade sections of an axial-flow water turbine stage is shown in Fig. P12.48. The rotor speed is \(1500 \mathrm{rpm}\).

(a) Sketch and label velocity triangles for the flow entering and leaving the rotor row. Use \(\mathbf{V}\) for absolute velocity, \(\mathbf{W}\) for relative velocity, and \(\mathbf{U}\) for blade velocity. Assume flow enters and leaves each blade row at the blade angles shown.

(b) Calculate the work per unit mass delivered at the shaft.

Figure P12.48

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Related Book For  book-img-for-question

Munson Young And Okiishi's Fundamentals Of Fluid Mechanics

ISBN: 9781119080701

8th Edition

Authors: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein

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