کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661717 1458163 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of variable fluid properties and thermocapillarity on the flow of a thin film on an unsteady stretching sheet
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
The effects of variable fluid properties and thermocapillarity on the flow of a thin film on an unsteady stretching sheet
چکیده انگلیسی

The effects of variable viscosity, variable thermal conductivity and thermocapillarity on the flow and heat transfer in a laminar liquid film on a horizontal stretching sheet is analyzed. Using a similarity transformation the governing time dependent boundary layer equations for momentum and thermal energy are reduced to a set of coupled ordinary differential equations. The resulting five-parameter problem is solved numerically for some representative value of the parameters. It is shown that the film thickness increases with the increase in viscosity of the fluid. In other words viscosity resists film thinning. Further it is shown that more heat flows out of the liquid through the stretching surface when conductivity increases with temperature than that for the case when conductivity decreases with temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 5–6, March 2007, Pages 991–996
نویسندگان
, , ,