Experimental and Numerical Investigation on a Centrifugal Pump under Air-Water Two-Phase Flow Condition
TypeArticles dans des revues avec comité de lecture
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 allows performing controlled values of air void fraction for different water flow rates and several rotational speeds. Global pump heads and efficiencies have been measured for several inlet air void fraction values at different rotating speeds up to pump performance breakdown. Similar laws under two-phase flow condition have been investigated at three selected rotating speeds. Numerical calculations have been also performed using URANS approach including k-e turbulence and inhomogeneous two-phase models for nominal rotational speed, the results of which are used to understand some specific experimental results that have been obtained. The results show that the pump performance degradation is more pronounced for low flow rates compared to high flow rates and the similarity laws can also be applied for air-water two phase flow conditions corresponding to the bubbly flow regime, when IVAF is small. Particle fluid model with interface transfer terms looks quite suitable to evaluate pump performance degradation up to IAVF values of 7%. Air bubbles distribute on suction side of the blade and are detained more and more inside the impeller channel near “wake” area when IAVF increase. Bubbles take over 60% part of the channel when IAVF increase to 7% in all three flow rates, which is the reason of the pump performance deterioration.
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 ...
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 ...
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 ...
A Review of Design Considerations of Centrifugal Pump Capability for Handling Inlet Gas-Liquid Two-Phase Flows JIANG, Qifeng; HENG, Yaguang; LIU, Xiaobing; ZHANG, Weibin; BOIS, Gérard; SI, Qiaorui (MDPI AG, 2019-03-20)Most of the pumps working under two phase flows conditions are used in petroleum industry applications, like electrical submersible pumps (ESP) for hydrocarbon fluids, in chemistry, nuclear industries and in agriculture ...