کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9690609 | 1457336 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Steady states, oscillations and heat explosion in a combustion problem with convection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Steady states, oscillations and heat explosion in a combustion problem with convection Steady states, oscillations and heat explosion in a combustion problem with convection](/preview/png/9690609.png)
چکیده انگلیسی
The effect of convection on the heat generated by an exothermic reaction is considered within a square reactor bounded by constant temperature walls. The fluid flow and heat transfer equations are solved numerically for a range of values of the Rayleigh Ra and Frank-Kamenetskii K numbers. From these solutions, boundaries between bounded solutions and thermal runaway are determined, with the range of K for bounded solutions increasing as Ra is increased. The system is capable of sustaining both steady and oscillatory behaviour, including simple periodic as well as both chaotic and period-three responses. A parametric region where there is hysteresis is found with either oscillations or steady states seen at the same parameter values, dependent on the initial configuration of the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - B/Fluids - Volume 24, Issue 2, MarchâApril 2005, Pages 189-203
Journal: European Journal of Mechanics - B/Fluids - Volume 24, Issue 2, MarchâApril 2005, Pages 189-203
نویسندگان
A. Lazarovici, V. Volpert, J.H. Merkin,