화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX)
권호 15권 2호, p.2087
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제목 Streaming potential for microchannels of arbitrary cross-sectional shapes for thin electric double layers
초록 The streaming potential of electrokinetic flows in microchannels raects ow rate and is usually exploited to determine the zeta potential of microchannels. In the present investigation, we derive a semi-analytic formula for the streaming potential of microchannels with arbitrary cross-sectional shapes valid for high zeta potentials as well as reasonably low zeta potentials. This formula satisfies the Onsager reciprocity principle at the limit of low zeta potential where the Debye-Hckel approximation is valid. The simple semi-analytic formula for the streaming potential derived in the present work can be employed to investigate electrokinetic flows and determine the zeta potentials of microchannels with arbitrary cross-sectional shapes.
저자 손희상, 임재영, 박흥목
소속 서강대
키워드 Streaming potential; Arbitrary cross-section; Zeta potential; Microchannels
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