On the energy conversion in electrokinetic transports

作     者：Zhaodong DING Long CHANG Kai TIAN Yongjun JIAN 

作者机构：School of Mathematical ScienceInner Mongolia UniversityHohhotInner Mongolia010021China School of Statistics and MathematicsInner Mongolia University of Finance and EconomicsHohhotInner Mongolia010021China 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2022年第43卷第2期

页      面：263-274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：Project supported by the National Natural Science Foundation of China(Nos.11902165,11772162,and 11862018) the Natural Science Foundation of Inner Mongolia Autonomous Region of China(Nos.2019BS01004 and 2021MS01007) the Inner Mongolia Grassland Talent(No.12000-12102013) 

主　　题：electrokinetic transport energy conversion efficiency Newtonian fluid viscoelastic fluid streaming potential field 

摘      要：Energy conversion in micro/nano-systems is a subject of current research,among which the electrokinetic energy conversion has attracted extensive ***,there exist two different definitions on the electrokinetic energy conversion efficiency in literature.A few researchers defined the efficiency using the pure pressure-driven flow rate,while other groups defined the efficiency based on the flow rate with the inclusion of the effect of the streaming potential *** this work,both definitions are investigated for different fluid types under the periodic electrokinetic flow *** Newtonian fluids,the two definitions give similar ***,for viscoelastic fluids,these two definitions lead to significant *** efficiency defined by the pure pressure-driven flow rate even exceeds 100%in a certain range of the *** result shows that in the case of viscoelastic flow,it is incorrect to define the energy conversion efficiency by pure pressure-driven flow *** the same time,the reason for this problem is clarified through comprehensive analysis.