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마이크로/나노 채널에서의 비평형 전기삼투 유동 모사를 위한 수치모델
곽호상(Ho Sang Kwak),E. F. Hasselbrink 한국전산유체공학회 2004 한국전산유체공학회 학술대회논문집 Vol.2004 No.-
A finite volume numerical model is developed for simulating non-equilibrium electroosmotic flow in micro- and nanochannels. The Guoy-Chapman model is adopted to compute the flow and electric potential. The Nernst- Planck equation is employed to trace unsteady transports of ionic species, i.e., time-dependent net charge density. A new set of boundary conditions based on surface charge density are designed rather than using the conventionally-employed zeta potential. A few issues for an efficient computation of electroosmotic flows are discussed. Representative computational examples are given to illustrate the robustness of the numerical model.