Gas-rigid-flexible compound blade coupling enhanced experimental study on chaotic mixing of multiphase flow
作者机构：Faulty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming650093China State Key Laboratory of Complex Nonferrous Metal Resources Clean UtilizationKunming University of Science and TechnologyKunming650093China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2024年第94卷第11期
页 面：356-372页
核心收录：
学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）]
基 金：supports by the National Natural Science Foundation of China(project No.52166004) National key research and development plan project(project No.2022YFC3902000) Yunnan Major Scientific and Technological Projects(grant Nos.202202AG050007,202202AG050002)
主 题：Rigid-flexible compound blades Tracer particle Bubble dynamics Multiphase flow Chaotic mixing characteristics
摘 要：Efficient fluid mixing is essential for process *** study proposes a new method in which gas-rigid-flexible composite blades are coupled to enhance chaotic mixing in multiphase flow *** rigidity and flexibility of the blades were adjusted by intermittent gas injection,which increased the effectiveness of mixing of the liquid-liquid two-phase *** study investigates the influence of different process parameters on the mixing efficiency and quantifies the chaotic characteristics of fluid mixing through pressure-time series analysis of multiscale entropy and the 0–1 test.A high-speed camera recorded the bubble movement in the flow field,while particle image velocimetry(PIV)revealed the enhancement of the properties of the flow field in the system due to the suspended motion of the *** suitable process parameters,gas-rigid-flexible composite blade coupling significantly enhanced the mixing effect,where the mixing time of the G-RFCP system was reduced by 1.42 times compared to that of the CP *** motion,deformation,and rupture enhanced the mechanical agitation,increasing the intensity of the turbulence and chaotic ***-field analysis indicated a three-fold increase in the vorticity and a 1.04-fold increase in the velocity difference for the G-RFCP system compared with those of the CP *** study provides theoretical and experimental foundations for understanding chaotic mixing in liquid-liquid two-phase fluids.
维普期刊数据库