Constructs of highly effective heat transport paths by bionic optimization

来源 :中国科学E辑 | 被引量 : 0次 | 上传用户:wxgaihxx
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The optimization approach based on the biological evolution principle is used to construct the heat transport paths for volume-to-point problem. The transport paths are constructed by inserting high conductivity materials in the heat conduction domain where uniform or nonuniform heat sources exist. In the bionic optimization process, the optimal constructs of the high conductivity material are obtained by numerically simulating the evolution and degeneration process according to the uniformity principle of the temperature gradient. Finally, preserving the features of the optimal constructs, the constructs are regularized for the convenience of engineering manufacture. The results show that the construct obtained by bionic optimization is approximate to that obtained by the tree-network constructal theory when the heat conduction is enhanced for the domain with a uniform heat source and high conductivity ratio of the inserting material to the substrate, the high conductivity materials are mainly concentrated on the heat outlet for the case with a uniform heat source and low thermal conductivity ratio, and for the case with nonuniform heat sources, the high conductivity material is concentrated in the heat source regions and construacts several highly effective heat transport paths to connect the regions to the outlet.
其他文献
随着我国市场经济体制的改革和迅速发展,各种不同领域的的中小型企业如雨后春笋般涌现出来.然而,这些新发展起来的中小型的企业和久经市场磨砺的大型企业有很大的差距.这种差
目的探讨青少年特发性脊柱侧凸的患者在包括手法在内的综合治疗前后的脊柱旁肌电活动特点.方法选择9例确诊的特发性脊柱侧凸的患者,在乳突下、C1、T1、T3、T6、T9、T12、L3、
随着食管支架的材料、构造、形状的不断改进,为许多不能手术切除的晚期食管癌患者、食管支气管瘘以及术后吻合口瘘经保守治疗无效的病例带来福音.本院自1998年3月至2003年12
The general analysis of the forward AC behavior of a semiconductor diode under series mode is pre-sented for the first time.A new method without any particular
Theoretical analyses have been performed to describe the coupling losses for a plane mirror in rectan-gular waveguidc resonator for an arbitrary waveguide mode
According to a mathematical model which describes the curing process of composites constructed from continuous fiber-reinforced, thermosetting resin matrix prep
With the entry to WRO and development of IT, banks in China are adjusting their competitive strategies to meet the competition. Internet banking has become a ki
The stability and robustness of routing protocol implementations (RPI) in a router are becoming more and more important with the growth of Internet scale. A nov
In the context of workflow systems, security-relevant aspect is related to the assignment of activities to (human or automated) agents. This paper intends to ca
MGAC (Motion Geometric Active Contours), a new variational framework of geometric active contours to track multiple nonrigid moving objects in the clutter background in image sequences is presented. T