کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660831 1458141 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vapor/liquid phase interaction in flare flashing sprays used in dermatologic cooling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Vapor/liquid phase interaction in flare flashing sprays used in dermatologic cooling
چکیده انگلیسی

Little knowledge exists concerning the atomization mechanisms and dispersion of flashing sprays in dermatologic cooling. This study examines flashing of a high superheat fluid flowing through micro tube nozzles resembling current medical devices. A one-dimensional, semi-empirical model of refrigerant flow through capillary tubes is used to quantify internal flow characteristics. These results provide nozzle exit conditions that are then correlated to external spray characteristics determined experimentally. One-dimensional expressions for external vapor/liquid interaction are developed to determine evolution of droplet size distribution and explain measured droplet accelerations near the nozzle exit. Droplet drag coefficients are subsequently calculated and compared to existing literature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 23–24, November 2008, Pages 5721–5731
نویسندگان
, , ,