کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1562128 999580 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A general and efficient computational procedure for modelling the Kapitza thermal resistance based on XFEM
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A general and efficient computational procedure for modelling the Kapitza thermal resistance based on XFEM
چکیده انگلیسی

The thermal resistance of an interface between two materials, conceptualized by Kapitza, is an important physical phenomenon encountered in many situations of practical interest. The numerical treatment of this phenomenon has up to now run into difficulties due to the temperature discontinuity. In this work, a general and efficient computational procedure for modelling the Kapitza thermal resistance is proposed, which is based on the extended finite element method (XFEM) in tandem with a level-set method. The steady thermal conduction in a two-phase material with the Kapitza thermal resistance at the interface is first formulated in a variational way and then numerically treated with the proposed computational procedure. Different three-dimensional numerical examples with known analytical solutions show the high accuracy and robustness of the proposed computational procedure in capturing the temperature jump across an interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 50, Issue 4, February 2011, Pages 1220–1224
نویسندگان
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