کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6679346 | 1427920 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous planar measurements of temperature and soot volume fraction in a turbulent non-premixed jet flame
ترجمه فارسی عنوان
اندازه گیری های همزمان یکنواختی دما و میزان بخار حجمی در یک شعله بدون جرقه بدون آشامیدنی
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کلمات کلیدی
درجه حرارت، دود، همزمان فلورسانس اتولوگ دو خط غیر خطی، تابش ناشی از لیزر،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
New measurements are reported of the soot-temperature interaction in a turbulent non-premixed ethylene-hydrogen-nitrogen attached jet flame with an exit Reynolds number of 15,000. Spatially resolved, two-dimensional temperature and soot volume fractions were measured simultaneously using non-linear excitation regime two-line atomic fluorescence (NTLAF) and laser-induced incandescence (LII) techniques, respectively. The soot-temperature correlation is presented and analyzed through representative images of single-shot simultaneous temperature and soot volume fraction at various heights, as well as through joint probability density functions (PDFs) of soot volume fraction (SVF) and temperature. A strong influence of temperature on SVF is found, which is consistent with current understanding of their inter-dependence. Axial and radial plots of mean SVF categorized into temperature bands of 300Â K are also reported. These reveal that, while the mean SVF is a function of both temperature and axial distance, the joint PDF depends only weakly on radial distance. The study highlights the value of the simultaneous measurements for understanding soot behavior in a turbulent environment and for model development and validation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Proceedings of the Combustion Institute - Volume 35, Issue 2, 2015, Pages 1931-1938
Journal: Proceedings of the Combustion Institute - Volume 35, Issue 2, 2015, Pages 1931-1938
نویسندگان
S.M. Mahmoud, G.J. Nathan, P.R. Medwell, B.B. Dally, Z.T. Alwahabi,