کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10264807 458028 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Turbulent consumption speed via local dilatation rate measurements in a premixed bunsen jet
ترجمه فارسی عنوان
سرعت مصرف آشفته از طریق اندازه گیری میزان انبساط محلی در یک جت بونسن پیش مخلوط
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The mean local reaction rate related to the average expansion across the front and computed from the mean velocity divergence is evaluated in this work. Measurements are carried out in a air/methane premixed jet flame by combined PIV/LIF acquisitions. The procedure serves the purpose of obtaining values of a turbulent flame speed, namely the local turbulent consumption speed SLC, as a function of the position along the bunsen flame. With the further position that the flamelet assumption provides a proportionality between turbulent burning speed normalized with the laminar unstretched one and the turbulent to average flame surface ratio, the proportionality constant, i.e., the stretching factor becomes available. The results achieved so far show the existence of a wide region along which the bunsen flame front has a constant stretching factor which apparently depends only on the ratio between turbulent fluctuations and laminar flame speed and on the jet Reynolds number.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 160, Issue 10, October 2013, Pages 2029-2037
نویسندگان
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