![]() The reconstruction exhibits contours that conform to the original. Furthermore, the reliability of the proposed model is demonstrated by a reconstruction of the Smith chart, on the one hand, and a performance analysis, on the other. The results indicate a 50% probability of achieving the ☑5% error interval, which is twice as good as the most recent Aungier model (Aungier R., 2006, “Turbine Aerodynamics: Axial-Flow and Radial-Inflow Turbine Design and Analysis”, ASME Press, New York). ![]() The obtained accuracy is subsequently assessed through CFD computations, employing a database comprising 109 cascades. In light of this, an enhanced model that, notably, builds upon the Zweifel criterion and the vortex penetration depth concept is developed and discussed. ![]() Closer investigation reveals an intriguing misuse of the lift coefficient in the secondary loss. In this paper, the underlying assumptions of the aforementioned models are discussed by means of a descriptive review, whilst an attempt is made to enhance their reliability and, potentially, accuracy in performance estimations. 2974) and its derivatives, plays a crucial role. and Mathieson G., 1951, “A Method of Performance Estimation for Axial-Flow Turbines,” ARC Reports and Memoranda No. Among these, the prominent Ainley and Mathieson correlation (Ainley D. Empirical correlations are still fundamental in the modern design paradigm of axial turbines.
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