Abstract
The Kutta condition applied in the potential flow is the used for explanation of the lift mechanism. The present research experimentally and numerically investigated the transition process from the flow with the zero circulation to the flow satisfied with the Kutta condition. For visualization, glycerin solution with aluminum powder is used as the working fluid. In the numerical and experimental results, the downstream stagnation point is located at the upstream of the blade trailing edge, which is similar to the zero circulation flow. As the Reynolds number is increased, the stagnation point is moved to the blade trailing edge, finally the flow is satisfied with the Kutta condition.
