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Evaluation of Icing Drag Coefficient Correlations Applied to Iced Propeller Performance Prediction
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Abstract
Evaluation of three empirical icing drag coefficient correlations is accomplished through application to a set of propeller icing data. The various correlations represent the best means currently available for relating drag rise to various flight and atmospheric conditions for both fixed-wing and rotating airfoils, and the work presented here illustrates and evaluates one such application of the latter case. The origins of each of the correlations are discussed, and their apparent capabilities and limitations are summarized. These correlations have been made to be an integral part of a computer code, ICEPERF, which has been designed to calculate iced propeller performance. Comparison with experimental propeller icing data shows generally good agreement, with the quality of the predicted results seen to be directly related to the radial icing extent of each case. The code's capability to properly predict thrust coefficient, power coefficient, and propeller efficiency is shown to be strongly dependent on the choice of correlation selected, as well as upon proper specification of radial icing extent.
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Authors
Citation
Miller, T., Shaw, R., and Korkan, K., "Evaluation of Icing Drag Coefficient Correlations Applied to Iced Propeller Performance Prediction," SAE Technical Paper 871033, 1987, https://doi.org/10.4271/871033.Also In
References
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