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Assessment of a Method for Predicting the Drag and Boundary-Layer Development on a Body of Revolution at Zero Incidence.

机译:评估一种预测零点发生时旋转体上阻力和边界层发展的方法。

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摘要

A comparison between experimental data and a boundary-layer and drag prediction method for bodies of revolution at zero incidence and high Reynolds number is discussed. The only physical input to the prediction method is that of transition position. In general drag predictions agree well with measurements both in trend and in absolute magnitude and predicted velocity profiles on afterbodies with an included semi-angle of less than about 15 deg. agree well with measurements. A modification to the method has been developed which gives a better agreement between predicted and measureed velocity profiles on fuller afterbodies provided that no flow separation takes place.

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