1956•Transactions of the Japan Society of Mechanical EngineersOpen access
One Method of calculating the Wind Tunnel Interference in the Cascade Test
Goro Kamimoto
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Abstract
This paper deals with the theoretical calculation of the wind tunnel interference in the cascade test on the assumption of two-dimensional potential flow. Using the theory of the wind tunnel wall interference upon the turning angle, as mentioned in the other paper, we can calculate the induced velocities and velocity gradients on each airfoil in the cascade by the tunnel walls. Hence we can introduce the induced ones into the theory of cascade composed of airfoils with arbitrary shape and obtain the theory of the wind tunnel interference with the airfoil characteristics in the cascade test. A numerical example is shown in the case of cascade composed of N. A. C. A. 6409.
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