Multifrequency Instability of Cavitating Inducers
نویسندگان
چکیده
منابع مشابه
Multifrequency Instability of Cavitating Inducers
Recent testing of high-speed cavitating turbopump inducers has revealed the existence of more complex instabilities than the previously recognized cavitating surge and rotating cavitation. This paper explores one such instability that is uncovered by considering the effect of a downstream asymmetry, such as a volute on a rotating disturbance similar to (but not identical to) that which occurs i...
متن کاملA Multifrequency Instability of Cavitating Inducers
Recent testing of high speed cavitating turbopump inducers has revealed the existance of more complex instabilities than the previously-recognized cavitating surge and rotating cavitation. This paper explores one such instability which is uncovered by considering the effect of a downstream asymmetry such as a volute on a rotating disturbance similar to (but not identical to) that which occurs i...
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It is well known that flow instabilities called rotating stall and surge may occur in non-cavitating turbomachines at flow rates smaller than design. Rotating stall is a local instability at the turbomachinery which is basically not dependent on the hydraulic system in which the turbomachine is installed. The stalled region rotates faster than impeller. Surge is a system instability in a hydrau...
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ژورنال
عنوان ژورنال: Journal of Fluids Engineering
سال: 2006
ISSN: 0098-2202,1528-901X
DOI: 10.1115/1.2734238