کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7060209 | 1458480 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical breakup model in the planar liquid sheets exposed to high-speed gas and droplet size prediction
ترجمه فارسی عنوان
مدل شکسته تئوری در ورق های مایع ورقه ای که در معرض پیش بینی حجم گاز و قطره با سرعت بالا قرار دارند
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کلمات کلیدی
ورق مایع هوا انفجاری، مدل شکستن نظری، اندازه قطره،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This paper makes an effort to describe the atomization in the air-blast breaking liquid sheet, with an emphasis on the establishment of the theoretical model capable of quantitatively predicting the performance of the atomizer. The phenomenological two-staged breakup model for a cylindrical jet exposed to the high-speed gas has been extended to the planar sheet, combined with a classical linear stability analysis whether gas compressibility and viscosity are included. By means of the full-wave integral, explicit expression of the Sauter Mean Diameter (SMD) for incompressible gas is obtained, as well as implicit ones for compressible and viscous gas conditions. Based upon the breakup model, results of the SMD are shown to coincide favorably with previous experimental data. Typically, the gas compressibility and viscosity in the first breakup stage have almost no influence on the ultimate value of mean droplet size, elucidating the validity and applicability of the explicit expression of the incompressible gas in the breakup model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Multiphase Flow - Volume 98, January 2018, Pages 158-167
Journal: International Journal of Multiphase Flow - Volume 98, January 2018, Pages 158-167
نویسندگان
Qin Li-zi, Yi Ran, Yang Li-jun,