Estimation of solid concentration in solid-liquid two-phase flow in horizontal pipeline using inverse-problem approach

作     者：Ji Zhang Han Yuan Ning Mei Zhe Yan Ji Zhang;Han Yuan;Ning Mei;Zhe Yan

作者机构：Marine EngineeringCollege of EngineeringOcean University of ChinaQingdao 266100China Offshore EngineeringDepartment of CivilEnvironmental and MiningUniversity of Western Australia35 Stirling HwyCrawleyWA 6009Australia Power Engineering and Engineering ThermophysicsSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2022年第20卷第3期

页      面：1-13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：This study was financially supported by the National Natural Science Foundation of China(No.51679225) National Natural Sci ence Science Foundation of China(No.51706214),and China Scholarship Council 

主　　题：Solid-liquid two-phase flow Solid concentration estimation Coupling calculation Inverse heat transfer problem Algebraic slip mixture model 

摘      要：In this study,an inverse-problem method was applied to estimate the solid concentration in a solid-liquid two-phase *** algebraic slip mixture model was introduced to solve the forward problem of solid-liquid convective heat *** time-average conservation equations of mass,momentum,energy,as well as the volume fraction equation were computed in a computational fluid dynamics(CFD)*** solid concentration in the CFD model was controlled using an external program that included the inversion iteration,and an optimal estimation was performed via experimental *** using a fly-ash-water mixture and sand-water mixture with different solid concentrations in a horizontal pipeline were conducted to verify the accuracy of the inverse-problem *** estimated results were rectified using a method based on the relationship between the estimated results and estimation error;consequently,the accuracy of the corrected inversion results improved *** a verification through experiments,the inverse-problem method was concluded to be feasible for predicting the solid concentration,as the estimation error of the corrected results was within 7%for all experimental samples for a solid concentration of less than 50%.The inverse-problem method is expected to provide accurate predictions of the solid concentration in solid-liquid two-phase flow systems.