کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
645464 1457142 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lattice Boltzmann simulation of convection melting in complex heat storage systems filled with phase change materials
ترجمه فارسی عنوان
شبیه سازی شبیه سازی کامپوزیتی در سیستم های ذخیره حرارتی پیچیده با مواد تغییر فاز
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In the present study, a double-population lattice Boltzmann method is applied to the simulation of convection-diffusion phenomena associated with solid-liquid phase transition processes. The research focus is the advancement of the lattice Boltzmann method to complex multitube heat storage system with different numbers and arrangements of tubes. Firstly, a systematic comparison of different lattice Boltzmann models for thermal and flow field in the phase change process is numerically conducted in a square cavity, and the numerical results are validated by the literature data. Then, a comprehensive analysis has been performed in order to investigate the influence of various numbers and arrangements of tubes on the melting dynamics of shell and tube models with different Rayleigh and Stefan numbers. The computational results show how the transient phase-change process, expressed in terms of the volume melt fraction of phase change materials (PCM), depends on the thermal and geometrical parameters of the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 86, 5 July 2015, Pages 238-250
نویسندگان
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