Suppression of Cavitation Instabilities in an Inducer by a Backflow Recirculator

点击翻译按钮获取中文摘要

In turbopump inducers for rocket engines, cavitation instabilities occur and cause shaft vibrations. We examined various types of casing treatments for suppressing the cavitation instabilities. The casing treatment which consisted of a circumferential groove with some ribs as a swirl breaker could suppress the cavitation instabilities effectively. The dynamic characteristics of cavitation, which relate to the occurrence of cavitation instabilities, were measured and clarified.