کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
646225 | 1457157 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A more comprehensive transport model for multilayer-cloth for perspiration based infrared camouflage
ترجمه فارسی عنوان
یک مدل حمل و نقل جامع تر برای پارچه های چند لایه برای استقامت مادون قرمز مبتنی بر چروک
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کلمات کلیدی
استتار مادون قرمز، مدل انتقال گرما و رطوبت همراه، تبخیر عرق،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
We used the CFD software Fluent with its user-defined functions to solve the governing equations and applied the model first to a simplified two-dimensional case with previous benchmark conditions. The results confirmed our earlier conclusion from the one-dimensional model that such a cloth structure can achieve the satisfactory effect of infrared camouflage, yet with much more details within the entire 2D simulation domain: 1) most of cloth outer surface bears the same temperature as the ambient, but the temperature is a little bit lower nearer the wind inlet due to the local higher latent heat loss; 2) the humidity gradually decreases horizontally from skin surface to the ambient, while vertically, along the wind blowing direction, the humidity first increases and then decreases. We then employed this model to compare the system behaviors between transient and steady conditions. Our predictions also demonstrated that changes in the ambient condition in terms of wind speed, ambient humidity and temperature will impact the distributions of temperature, humidity and heat loss in the cloth. This first imposes challenges to the idea of perspiration based infrared camouflage; it also implies nonetheless that such scheme is feasible over a certain range of ambient conditions. Our proposed cloth system thus provides a model analysis that reveals and tackles the complex human body-cloth interactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 68, Issues 1â2, July 2014, Pages 10-19
Journal: Applied Thermal Engineering - Volume 68, Issues 1â2, July 2014, Pages 10-19
نویسندگان
Xia Yin, Qun Chen, Ning Pan,