Unsteady Pressure Pulsations in Pumps—A Review
نویسندگان
چکیده
Unsteady pressure-pulsation-induced severe vibration and high alternating stress can cause some unexpected results, including impeller crack structural damage of the entire pumping system. In present paper, a review on pressure pulsations in pumps is carried out based published studies. A comprehensive view from several aspects discussed detail. The contents studies include mechanism rotor–stator interaction; prediction model experimental numerical investigations pulsations; unsteady rotating-stall-induced at off-design flow rates; relationship between pulsation internal structure cavitation; reduction caused by effective approaches. It concluded that closely associated with complex structures, for instance separation, cavitation, rotating stall. interaction mainly dominates characterized discrete components spectrum. To reduce pulsation, approaches are proposed, such as increasing gap, staggered blade, blade modification. Finally, suggestions future works given considering current research. contributes to better understanding centrifugal pumps, may also benefit engineers controlling fields, nuclear reactor.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16010150