کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11003765 1462578 2019 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An optimization study to investigate non-linearity in thermal behaviour of porous fin having temperature dependent internal heat generation with and without tip loss
ترجمه فارسی عنوان
یک مطالعه بهینه سازی برای بررسی غیر خطی بودن در رفتار حرارتی غشاء متخلخل با ایجاد حرارت گرمای داخلی وابسته به دما با و بدون افت نوک است
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
This work is devoted to study the temperature distribution, efficiency and optimization of rectangular porous fins for insulated and convective tip conditions. The governing differential equations obtained in the analysis of porous fins are highly non linear in kind. Two approximate analytical techniques, Adomian Decomposition method (ADM) and Differential transformation method (DTM) are adopted to predict the temperature distribution in the porous fin with temperature dependent heat generation, and temperature dependent thermal conductivities of fin material and fluid passing through fin pores. A numerical scheme using finite difference method has been applied to validate the analytical results. The analytical results obtained have been found in accordance with the numerical results. The role of different important parameters have been discussed to understand their importance in the heat transfer through porous fins. Also, a comparison has been presented between solid and porous fins and the results indicate that by selecting an appropriate value of porosity higher heat transfer rate can be achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 67, February 2019, Pages 351-365
نویسندگان
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