Theoretical Investigation of Dynamic Stall Using a Momentum Integral Method,
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
An analytical study into the gust response of an airfoil is presented. The momentum-integral equation for steady flow is extended into the airfoil that experiences a constant-rate-of-change of angle-of-attack gust. The von Karman-Pohlhausen method of integration is successfully modified to incorporate the additional transient flow terms the equation of closure necessary to do this is also presented. Finally, computation of the flow about a Joukowski airfoil using the new equations is performed and the results are presented and discussed. It is shown that these results are in agreement with existing experimental data.