1717 Three Kinds of Surging Oscillation in Cavitating Cascade
Details
Unsteady cavitation occurring in turbopump sometimes yields unstable oscillation in the pump which is called as cavitation instabilities. In this study, cavitation surge accompanied by pulsation phenomenon which is classified into axial directional instability is numerically analyzed in cascade by using a numerical method based on our original gas-liquid two-phase model. As a result, three kinds of surging oscillation having different characteristics are reproduced in the present cascade, and the mechanism is analyzed.
