کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660557 1458113 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlocal behavior in phonon transport
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Nonlocal behavior in phonon transport
چکیده انگلیسی

Nonlocal behavior is accommodated in the framework of thermal lagging to describe heat transport in phonon systems. In steady state the emphasis is on capturing the linear dependence of the effective thermal conductivity of thin nanowires on their radius. In ultrafast transient validation of the nonlocal/lagging model is furnished by its precise correlations with the thermomass model. A new type of thermal wave results from the first order nonlocality. Entering the second-order effects of nonlocality, special features include diminution of the sharp wavefront, a localized zone with a finite width, and much wider affected regions due to phonon scattering.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 1–3, 15 January 2011, Pages 475–481
نویسندگان
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