@Article{fdmp.2020.010695,
AUTHOR = {Xiaorui Cheng, Yimeng Jiang, Min Li, Shuyan Zhang},
TITLE = {Influence of the Axial Position of the Guide Vane on the Fluctuations of Pressure in a Nuclear Pump},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {16},
YEAR = {2020},
NUMBER = {5},
PAGES = {1047--1061},
URL = {http://www.techscience.com/fdmp/v16n5/40304},
ISSN = {1555-2578},
ABSTRACT = {The influence of the axial mount position of the guide vane on the pressure fluctuation in a nuclear pump (AP1000) is investigated. The characteristics of
the three-dimensional flow inside the nuclear pump are analyzed by means of
numerical simulation. Results indicate that when the axial relative distance
between the guide vane and the pumping chamber is reduced, in conditions of
“small flow,” the efficiency of the pump increases, the pressure inside the pumping chamber decreases, while the losses related to the guide vane grow. Under
large flow conditions, as the efficiency of the pump decreases, the losses for
the guide vane and the pumping chamber increase. The pressure fluctuation in
the annular pumping chamber is basically determined by the rotation frequency
and the blade passing frequency. The magnitude of these fluctuations is affected
by the guide vane axial position. In particular, the smallest possible amplitude is
obtained when the outlet central plane of the guide vane coincides with the outlet
axis of the pumping chamber.},
DOI = {10.32604/fdmp.2020.010695}
}