CFD Analysis of the Characteristics and Influencing Factors of Continuous Cementing Slurry Mixers
In order to investigate the flow characteristics of the continuous well cement slurry mixing system,a segmented control simulation method was proposed to provide a means of analysis.The influence of design variables,including impeller diameter and speed,on the efficacy of slurry mixing was evaluated through the utilization of the Eulerian multiphase flow model and the Multiple Reference Frame(MRF)method,with a particular focus on uniformity and power consumption.The data demonstrate that impeller diameter,speed,and particle size have a significant impact on slurry uniformity in a continuous mixing system.In addition to these factors,power consumption is also influenced by the mixing shaft inclination and design density.An increase in speed and diameter results in an improvement in slurry uniformity.However,the use of excessively large diameters and speeds may not only lead to a significant increase in power consumption but also a decrease in slurry uniformity.The proposed computational model and methodology in this study can serve as a reference for optimizing mixer design,and the research findings offer scientific guidance for achieving efficient well cementing operations in engineering.
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