Comments on the Prediction of Dynamic Stall

摘要

Navier-Stokes, discrete vortex, zonal, and empirical methods for predicting dynamic stall were reviewed. It is concluded that accepted test cases by which the performance of dynamic stall methods may be assessed are needed. There is an unresolved dilemma as to which basic prediction philosophy should be adopted. Using the appropriate form of the Navier-Stokes equations in finite difference form requires large and expensive computing power, while the predominantly empirical procedures need little of such power but much expensive data. A summary table provides a quick reference to the methods.