Study of Hump Instability Phenomena in Pump Turbine at Large Partial Flow Conditions on Pump Mode
نویسندگان
چکیده
منابع مشابه
Hysteresis Characteristic in Hump Region of a Pump-Turbine Model
The hump characteristic is one of the major instabilities in pump-turbines. When pumpturbines operate in the hump region, strong noise and serious fluctuations could be observed, which are harmful to the safe and stable operations and even destroy the whole unit as well as water conveyance system. In this paper, a low specific speed (nq = 36.1 min−1) pump-turbine model was experimentally invest...
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The hump feature is one of the major instabilities in pump-turbines. When pump-turbines operate in the hump region, strong noise and serious fluctuations can be observed, which are harmful to their safe and stable operation and can even destroy the whole unit as well as water conveyance system. In this paper, a low specific speed (nq = 36.1 min−1) pump-turbine model was experimentally investiga...
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چکیده ندارد.
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The purpose of this study is to investigate the performance and three-dimensional behavior of the flow in a mixed flow pump and the way cavitation phenomenon is affected by different parameters such as fluid temperature, pump speed and flow rate. Computational fluid dynamic software FLUENT 6.3 was utilized to simulate the whole flow field of the pump. RNG k-ε model combined with standard wall f...
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ژورنال
عنوان ژورنال: Journal of Mechanical Engineering
سال: 2016
ISSN: 0577-6686
DOI: 10.3901/jme.2016.24.170