کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7055834 1458046 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation of airborne contaminant transport under different vortex structures in the aircraft cabin
ترجمه فارسی عنوان
بررسی عددی حمل و نقل آلودگی هوا در زیر ساختارهای مختلف گرداب در کابین هواپیما
کلمات کلیدی
کابین هواپیما، ساختار گرداب هواپیما، بازده تهویه انتقال آلودگی هوا، شناور حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Airborne contaminants such as pathogens, odors and CO2 released from an individual passenger could spread via air flow in an aircraft cabin and make other passengers unhealthy and uncomfortable. In this study, we introduced the airflow vortex structure to analyze how airflow patterns affected contaminant transport in an aircraft cabin. Experimental data regarding airflow patterns were used to validate a computational fluid dynamics (CFD) model. Using the validated CFD model, we investigated the effects of the airflow vortex structure on contaminant transmission based on quantitative analysis. It was found that the contaminant source located in a vorticity-dominated region was more likely to be “locked” in the vortex, resulting in higher 62% higher average concentration and 14% longer residual time than that when the source was on a deformation dominated location. The contaminant concentrations also differed between the front and rear parts of the cabin because of different airflow structures. Contaminant released close to the heated manikin face was likely to be transported backward according to its distribution mean position. Based on these results, the air flow patterns inside aircraft cabins can potentially be improved to better control the spread of airborne contaminant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 96, May 2016, Pages 287-295
نویسندگان
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