کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9877556 | 1534081 | 2005 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surfactant-induced fingering phenomena in thin film flow down an inclined plane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We consider the dynamics of a thin liquid film covered with insoluble surfactant flowing down an inclined plane. A coupled pair of nonlinear partial differential equations for the film height and surfactant concentration are derived using lubrication theory. Two configurations of fluid and surfactant are considered: constant flux and constant volume. Examination of the base states reveals the presence of propagating wave fronts in both configurations. Application of a transient growth analysis demonstrates the existence of an instability near the leading edge of the fluid that is found to be vulnerable to transverse disturbances of intermediate wavenumber. Our results illustrate that several features of the much studied uncontaminated film flow problem are modified due to the inclusion of surfactant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 209, Issues 1â4, 15 September 2005, Pages 62-79
Journal: Physica D: Nonlinear Phenomena - Volume 209, Issues 1â4, 15 September 2005, Pages 62-79
نویسندگان
B.D. Edmonstone, O.K. Matar, R.V. Craster,