کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7052103 1457406 2016 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of air inlet and fuel plenum behavior in a rotating detonation combustor
ترجمه فارسی عنوان
تجزیه و تحلیل ورودی هوای ورودی و رفتار پیلوم سوخت در یک توربو شفت انفجاری چرخشی
کلمات کلیدی
انفجار، احتراق متقاطع انفجاری چرخشی، احتراق فوق العاده، بازخورد فشار رزونانس،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The behavior of the oxidizer inlet and the fuel injection plenums during the operation of a Rotating Detonation Combustor (RDC) is studied using pressure sensors in the air injection gap, the fuel plenum, and in the combustor. Significant pressure feedback from the rotating detonation wave is observed in the air injection gap. Pressure feedback into the fuel plenum is relatively weaker. The average normalized cross-correlation between the pressure-time series in the air injection gap and within the combustor is greater than 0.3. The air injection gap has a considerable base sinusoidal oscillation in the same frequency range as a previously discovered waxing-and-waning instability in the combustor. The fundamental frequency in the air injection gap is the same as the RDC operation frequency for almost all test cases, indicating the high efficacy of the sensors in the air inlet to attain the operating frequency. Frequency analysis reveals notable spatial variation in the fuel plenum dynamics. The low frequency oscillation in the air injection gap is found to be constant at 235 (±2.5) Hz for all the air flow rates and equivalence ratios tested.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 70, January 2016, Pages 408-416
نویسندگان
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