Investigation on gas-liquid two-phase flow centrifugal pump performances for different rotational speeds
TypeArticles dans des revues avec comité de lecture
Performance characteristics of a centrifugal pump under gas-liquid mixture are presented, using a direct coupled single-stage, single-suction centrifugal pump. Both experimental and numerical simulations comparison are carried out, for three different rotational speeds and different inlet gas volume fractions, the results of which are presented, based on dimensionless coefficients from similarity laws. The numerical results show that good agreement is obtained with experimental data at nominal rotational speed for several flow coefficients. It is found that the running of the pump is near the sudden break down of the present pump when the inlet void fraction is below 7%. However, numerical results are less sensitive to rotational speed effects compared with experiment ones; the influence of decreasing rotational speed on pump performances is more and more pronounced when inlet gas void fraction increases and flow coefficient decreases. Froude number effects are taken into account in order to explain part of these differences.
Files in this item
Showing items related by title, author, creator and subject.
Experimental and numerical studies on flow characteristics of centrifugal pump under air-water inflow SI, Qiaorui; HE, Wenting; BOIS, Gerard; CUI, Qianglei; YUAN, Shouqui; ZHANG, Keyu (International Journal of Fluid Machinery and Systems, 2019)A two-phase liquid pumping test ring is built to study the flow induced characteristics of centrifugal pump under the air-water flow working condition. Pump performances are measured under different flow rates and different ...
Investigation on centrifugal pump performance degradation under air-water inlet two-phase flow conditions SI, Qiaorui; CUI, Qianglei; ZHANG, Keyu; YUAN, Jianping; BOIS, Gérard (EDP Sciences, 2018-08-22)In order to study the flow characteristics of centrifugal pumps when transporting the gas-liquid mixture, water and air were chosen as the working medium. Both numerical simulation and experimental tests were conducted on ...
SI, Qiaorui; DUPONT, Patrick; BAYEUL-LAINE, Annie-Claude; DAZIN, Antoine; ROUSSETTE, Olivier; SHOUQUI, Yuan; BOIS, Gérard (2014)The overall performance of a vane-island type diffuser of a centrifugal pump model was obtained by means of directional probe traverses. These measurements were performed in an air model of a real hydraulic pump for five ...
Experimental and Numerical Investigation on a Centrifugal Pump under Air-Water Two-Phase Flow Condition SI, Qiaorui; BOIS, Gérard; ZHANG, Keyu; YUAN, Shouqui (Springer, 2009)Experimental and numerical investigations have been performed on a single stage, single-suction, horizontal-orientated centrifugal pump under air-water two-phase non condensable flow conditions. Experimental test loop ...
Air-water two-phase flow experimental and numerical analysis in a low specific speed centrifugal pump SI, Qiaorui; BOIS, Gerard; ZHANG, Keyu; YUAN, Jianping (European Turbomachinery Society, 2017)The paper presents experimental and numerical investigations performed on a single stage, single-suction, horizontal-orientated centrifugal pump in air-water two-phase non condensable flow conditions. Experimental test ...