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1 TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

1 2010

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1D Model Calibration Based on 3D Calculations for Tesla Turbine

Puzyrewski R., Tesch K.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2010

Vol. 14, No 3

237-248

This paper presents a system of equations for an axisymmetric laminar flow, after averaging, through the width of the interdisk slit of a Tesla turbine. Coefficients improving the efficiency of a 1D model were introduced as a result of averaging. The minimal number of such coefficients was determined. The 1D model makes it possible to attain analytical solutions to an accuracy limited by these coefficients. The calibration of a 1D model depends on finding the numerical values of coefficients that yield a sufficient accuracy compared with 3D calculations. A definition of the efficiency coefficient for the Tesla turbine is also given. This definition relies on the 1D model results. Example values of this coefficient are described after the 1D model calibration.