کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8058924 | 1520088 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combustion characteristics of hybrid rocket motor with segmented grain
ترجمه فارسی عنوان
خصوصیات احتراق موتور راکت هیبریدی با دانه های جدا شده
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کلمات کلیدی
موتور راکت ترکیبی دانه دانه ای، راندمان احتراق، نرخ رگرسیون،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
چکیده انگلیسی
In this paper, to improve the combustion efficiency and the regression rate in hybrid rocket motor, we introduce a concept that two different grain configurations are deployed into one combustion chamber, which is called the segmented grain in following chapters. Both numerical and experimental investigations are conducted. In the simulation part, the combustion efficiency and the distributions of regression rate, temperature and mass fraction of species in segmented grain cases are obtained. The corresponding firing tests are performed by the lab-scale motor with 90% H2O2 and PE propellant combination. The combustion efficiency and average regression rates are achieved in each test case. The numerical and experimental results agree well, and demonstrate that the segmented grain configuration proves its ability of enhancing the combustions efficiency and the regression rate of the hybrid rocket motor. Comparing with the contrast cases, the combustion efficiency of segmented grain cases are raised by 15% and around 10% in the simulations and tests, respectively. The regression rates of the after-section grain are also increased according to simulation and test results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 46, OctoberâNovember 2015, Pages 537-547
Journal: Aerospace Science and Technology - Volume 46, OctoberâNovember 2015, Pages 537-547
نویسندگان
Hui Tian, Xingliang Sun, Yudong Guo, Pengfei Wang,