COMPARISON OF ANALYSIS AND EXPERIMENT FOR A CAVITATION FREE-FLOW ALONG AND PAST A SINGLE BLADE

The paper gives a detailed description of numerical and experimental a nalysis of a cavitation free flow about a single blade placed in a wat er tunnel as well as the comparison between both the methods. The flow field upstream, around and downstream of the blade was measured by a Laser-Doppler velocimeter, the pressure distribution on the blade surf ace by using transducers, and the hydraulic torque by strain gauges mo unted on the blade pivot. The problem was treated numerically by using the finite element method. The calculation was performed by FIDAP com puter code using a k-epsilon model. The agreement with measurements wa s good.