Wood, De Volson, 1832-1897 · New York, J. Wiley & Sons · leaf 81
s the analysis. The condition for best efficiency of the frictionless wheelrequires that the velocity of leaving the wheel should be amininiuni; and this may be realized, in some cases, when itsdirection is oblique to the radius. Thus, let A 0 be radial when AB is the velocity relative tothe…
Turbines
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