کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5376225 1504314 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The tube wall fluctuation can induce a net current in a periodic tube
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
The tube wall fluctuation can induce a net current in a periodic tube
چکیده انگلیسی
We study the transport of Brownian particles moving within a three-dimensional periodic tube in the presence of an elastic wall without any external force. The tube wall can fluctuate between the two states. Reduction of the coordinates may involve the appearance of an entropic barrier and an effective diffusion constant. It is found that the tube wall fluctuation can induce a net current without any external force. The direction of the movement is determined by the sign of the asymmetric parameter of the tube wall. There exists an optimized value of the fluctuation rate (or the ratio of the two fluctuation rates) at which the average velocity takes its maximum value.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 344, Issues 1–2, 22 February 2008, Pages 185-188
نویسندگان
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