کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6594027 457928 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and numerical studies characterizing the burning dynamics of wildland fuels
ترجمه فارسی عنوان
مطالعات تجربی و عددی که مشخص کننده پویایی سوخت های سوخت های طبیعی است
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A method to accurately understand the processes controlling the burning behavior of porous wildland fuels is presented using numerical simulations and laboratory experiments. A multiphase approach has been implemented in OpenFOAM, which is based on the FireFOAM solver for large eddy simulations (LES). Conservation equations are averaged in a control volume containing a gas and a solid phase. Drying, pyrolysis, and char oxidation are described by interaction between the two phases. Numerical simulations are compared to laboratory experiments carried out with porous pine needle beds in the FM Global Fire Propagation Apparatus (FPA). These experiments are used to support the use and the development of submodels that represent heat transfer, pyrolysis, gas-phase combustion, and smoldering processes. The model is tested for different bulk densities, two distinct species and two different radiative heat fluxes used to heat up the samples. It has been possible to reproduce mass loss rates, heat release rates, and temperatures that agree with experimental observations, and to highlight the current limitations of the model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 168, June 2016, Pages 113-126
نویسندگان
, , , , , , ,