Constructal tree networks for heat transfer
العنوان: | Constructal tree networks for heat transfer |
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المؤلفون: | Marcelo Risso Errera, Gustavo A. Ledezma, Adrian Bejan |
المصدر: | Journal of Applied Physics. 82:89-100 |
بيانات النشر: | AIP Publishing, 1997. |
سنة النشر: | 1997 |
مصطلحات موضوعية: | Tree (data structure), Constructal law, Thermal resistance, Heat transfer, Tree network, General Physics and Astronomy, Point (geometry), Heat sink, Topology, Mathematics, Block (data storage) |
الوصف: | This paper addresses the fundamental problem of how to connect a heat generating volume to a point heat sink by using a finite amount of high-conductivity material that can be distributed through the volume. The problem is one of optimizing the access (or minimizing the thermal resistance) between a finite-size volume and one point. The solution is constructed by covering the volume with a sequence of building blocks, which proceeds toward larger sizes (assemblies), hence, the “constructal” name for this approach. Optimized numerically at each stage are geometric features such as the overall shape of the building block, its number of constituents, and the internal distribution of high-conductivity inserts. It is shown that in the optimal design, the high-conductivity material has a distribution with the shape of a tree. Every aspect of the tree architecture is deterministic: the shapes of the largest assembly and all its constituents, the number of branches at each level of assembly, the relative position of building blocks in each assembly, and the relative thicknesses of successive branches. The finer, innermost details of the tree architecture (e.g., the branching angle) have a negligible effect on the overall thermal resistance. The main conclusion is that the structure, working mechanism, and minimal resistance of the tree network can be obtained deterministically, and that the constrained optimization of access routes accounts for the macroscopic structure in nature. |
تدمد: | 1089-7550 0021-8979 |
DOI: | 10.1063/1.365853 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b0a9ab827faec55b49855b15af689dc2 https://doi.org/10.1063/1.365853 |
رقم الانضمام: | edsair.doi...........b0a9ab827faec55b49855b15af689dc2 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 10897550 00218979 |
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DOI: | 10.1063/1.365853 |