Wood, De Volson, 1832-1897 · New York, J. Wiley & Sons · leaf 44
ugh the wheel,the area of the normal sections may be found from equations(20). But well-known physical facts determine that the changes ofcurvature and section must be gradual, and the general formregular, so that eddies and whirls shall not be formed. For thesame reason the wheel must be run with…
Turbines
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