Electrokinetic energy conversion of electro-magneto-hydro-dynamic nanofluids through a microannulus under the time-periodic excitation
通过在时间周期的刺激下面的 microannulus 的 electro-magneto-hydro-dynamic nanofluids 的 Electrokinetic 精力变换作者机构:College of SciencesInner Mongolia University of TechnologyHohhot 010051China Transportation InstituteInner Mongolia UniversityHohhot 010021China School of Mathematical ScienceInner Mongolia UniversityHohhot 010021China
出 版 物:《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学(英文版))
年 卷 期:2021年第42卷第7期
页 面:1029-1046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.11772162,11802147) the Natural Science Foundation of Inner Mongolia(No.2018LH01015) the Foundation of Inner Mongolia Autonomous Region University Scientific Research Project(No.NJZY18093) the Foundation of Inner Mongolia University of Technology(No.ZD201714)
主 题:electrokinetic energy conversion(EKEC)efficiency nanofluid streaming potential magnetic field time-periodic excitation
摘 要:In this work,the effects of externally applied axial pressure gradients and transverse magnetic fields on the electrokinetic energy conversion(EKEC)efficiency and the streaming potential of nanofluids through a microannulus are *** analytical solution for electro-magneto-hydro-dynamic(EMHD)flow is obtained under the condition of the Debye-Huuckel ***,Green’s function method is used to obtain the analytical solutions of the velocity *** result shows that the velocity distribution is characterized by the dimensionless frequency?,the Hartmann number Ha,the volume fraction of the nanoparticlesφ,the geometric radius ratio a,and the wallζpotential ratio ***,the effects of three kinds of periodic excitations are compared and *** results also show that the periodic excitation of the square waveform is more effective in increasing the streaming potential and the EKEC *** is worth noting that adjusting the wallζpotential ratio and the geometric radius ratio can affect the streaming potential and the EKEC efficiency.