کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
659695 | 1458105 | 2011 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analytical mass transfer solution of longitudinal laminar flow of Happel's free surface model
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The mass transfer problem of longitudinal laminar flow of the Happel's free surface model (HFSM) is studied under constant wall flux and constant wall concentration boundary conditions. For different shell void fractions, the analytical solution of Sherwood's number in fully developed region, the strict Graetz analytical solution of Sherwood's number in the developing region and approximate Leveque solution are obtained. Furthermore, the expression of local Sherwood's number for solving the whole range of shell void fraction is obtained by combining Leveque solution with analytical solution in fully developed region. The obtained equation is as accurate as Graetz analytical solution. In the HFSM, the mass transfer coefficient decreases with the increase of shell void fraction. The shell void fraction also affects the entrance region length of mass transfer. If Reynolds's number, Schmidt's number and radius of fiber are constant, the entrance region length will increase with the increase of shell void fraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 17â18, August 2011, Pages 4000-4008
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 17â18, August 2011, Pages 4000-4008
نویسندگان
Bingbing Chen, Zengliang Gao, Weiya Jin, Shanlong Zheng,