کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
158387 457006 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unsteady mass transfer around axisymmetric drops of revolution in variable diffusion coefficient liquids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Unsteady mass transfer around axisymmetric drops of revolution in variable diffusion coefficient liquids
چکیده انگلیسی

Unsteady mass transfer in the continuous phase around axisymmetric drops of revolution at high Peclet numbers has been theoretically studied. The liquid is a binary system, having a variable diffusion coefficient, which depends on the solute concentration. The solution to the problem was obtained by extending the theory of Favelukis and Mudunuri, developed for a constant diffusion coefficient liquid. The procedure consists of transforming the differential mass balance, for a binary system, into a partial differential equation which has an analytical solution, and an ordinary differential equation that needs to be solved numerically. Solutions to a large number of problems can be immediately obtained with the only requirements being the shape of the drop, the tangential velocity at the surface of the drop and an expression for the variable diffusion coefficient liquid. An approximate analytical solution is also suggested which is in excellent agreement with the numerical results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 63, Issue 17, 1 September 2008, Pages 4280–4284
نویسندگان
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