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Abstract

In order to increase the power and working heads of Kaplan turbines it is necessary to avoid any low local pressures round the blades. The problem is similar to that encountered in high-speed aerofoil design, and the possibility of using similar methods to evolve blade sections for Kaplan turbines is explored in the paper.

A general survey for those unacquainted with recent developments in aerofoil design is given, which is intended to demonstrate the advantages of the use of profiles with specific velocity distributions and to illustrate the general methods by which they may be derived.

A brief summary is made of methods of designing aerofoils in cascade to allow for blade interference and a few examples are quoted from British and American practice.

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References

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Thin Aerofoil Theory and the Application of Analogous Methods to the Design of Kaplan Turbine Blades *

Abstract

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References