%0 Journal Article
%T Time periodic electroosmotic flow of the generalized Maxwell fluids between two micro-parallel plates with high Zeta potential<br>平行板微管道间Maxwell流体的高Zeta势周期电渗流动
%A Chang Long
%A Jian Yong-Jun
%A <br>长龙
%A 营永军
%J 物理学报
%D 2012
%I 
%X In this study, semi-analytical solutions are presented for the time periodic (electroosmotic flow) of linear viscoelastic fluids between micro-parallel plates. The linear viscoelastic fluids used here are described by the general Maxwell model. The solution involves analytically solving the nonlinear Poisson-Boltzmann (P-B) equation, the Cauchy momentum equation and the general Maxwell constitutive equation. By numerical computations, the influences of the dimensionless wall Zeta potentialψ0, the periodic EOF electric oscillating Reynolds number Re, and normalized relaxation times λ1ω on velocity profiles are presented. Results show that for prescribed electrokinetic width K, relaxation time λ 1ω and oscillating Reynolds number Re, higher Zeta potential ψ0 will lead to larger amplitude of EOF velocity, and the variation of velocity is restricted to a very narrow region close to the Electric double-layer. In addition, with the increase of relaxation time λ 1ω, the elasticity of the fluid becomes conspicuous and the velocity variations can be expanded to the whole flow field. For prescribed Re, longer relaxation time λ 1ω will lead to quick change of the EOF velocity profile, and the amplitude becomes larger gradually.
%K EDL
%K time periodic EOF
%K generalized Maxwell fluids
%K micro-parallel plates<br>EDL
%K 周期EOF
%K 广义Maxwell流体
%K 平行板间微管道
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=78F360FC29C479118DA6D081D6C48892&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=59906B3B2830C2C5&sid=A138BC9775E43E32&eid=A138BC9775E43E32&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=34