Author:
Tan Lei,Zhu Baoshan,Wang Yuchuan,CAO Shuliang,Gui Shaobo
Abstract
Purpose
– The purpose of this paper is to elucidate the detailed flow field and cavitation effect in the centrifugal pump volute at partial load condition.
Design/methodology/approach
– Unsteady flows in a centrifugal pump volute at non-cavitation and cavitation conditions are investigated by using a computation fluid dynamics framework combining the re-normalization group k-e turbulence model and the mass transport cavitation model.
Findings
– The flow field in pump volute is very complicated at part load condition with large pressure gradient and intensive vortex movement. Under cavitation conditions, the dominant frequency for most of the monitoring points in volute transit from the blade passing frequency to a lower frequency. Generally, the maximum amplitudes of pressure fluctuations in volute at serious cavitation condition is twice than that at non-cavitation condition because of the violent disturbances caused by cavitation shedding and explosion.
Originality/value
– The detailed flow field and cavitation effect in the centrifugal pump volute at partial load condition are revealed and analysed.
Subject
Computational Theory and Mathematics,Computer Science Applications,General Engineering,Software
Reference25 articles.
1. Arndt, N.
,
Acosta, A.
,
Brennen, C.
and
Caughey, T.
(1990), “Experimental investigation of rotor-stator interaction in a centrifugal pump with several vaned diffusers”,
Journal of Turbomachinery
, Vol. 112 No. 1, pp. 98-108.
2. Bachert, R.
,
Stoffel, B.
and
Dular, M.
(2010), “Unsteady cavitation at the tongue of the volute of a centrifugal pump”,
J Fluids Eng
, Vol. 132 No. 6, pp. 061301-1-061301-6.
3. Brennen, C.E.
(1994),
Hydrodynamics of Pumps
, Concepts ETI Inc. and Oxford University Press, Oxford.
4. Coutier-Delgosha, O.
,
Fortes-Patella, R.
and
Reboud, J.
(2003), “Evaluation of the turbulence model influence on the numerical simulations of unsteady cavitation”,
J Fluids Eng
, Vol. 125 No. 1, pp. 38-45.
5. Coutier-Delgosha, O.
,
Fortes-Patella, R.
,
Reboud, J.
,
Hofmann, M.
and
Stoffel, B.
(2003), “Experimental and numerical studies in a centrifugal pump with two-dimensional curved blades in cavitating condition”,
J Fluids Eng
, Vol. 125 No. 6, pp. 970-978.
Cited by
99 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献