کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10263749 457140 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new state model of liquid-vapor interfaces-to yield analytical expression for surface tension
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A new state model of liquid-vapor interfaces-to yield analytical expression for surface tension
چکیده انگلیسی
Based on the van der Waals fluid model, a simple equation of state, unique for non-uniform fluids, is developed. It is applied to the liquid-vapor interface, to derive the density profile in the interfacial region. The density profile is used in conjunction with the gradient theory, to yield an expression for the surface tension of a saturated fluid as a function of temperature and fluid properties. The non-dimensionalized influence parameter of the gradient theory is assigned best-fit values, which are of a unity order of magnitude, as expected. The predicted surface tension values are in good agreement with experimental data, for a variety of fluids.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 60, Issue 3, February 2005, Pages 711-716
نویسندگان
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