Bai Chao, Wang Liqiu
Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong.
Nanoscale Res Lett. 2011 Mar 21;6(1):240. doi: 10.1186/1556-276X-6-240.
Blade configuration of nanofluids has been proven to perform much better than dispersed configuration for some heat conduction systems. The analytical analysis and numerical calculation are made for the cylinder--shaped and regular-rectangular-prism--shaped building blocks of the blade-configured heat conduction systems (using nanofluids as the heat conduction media) to find the optimal cross-sectional shape for the nanoparticle blade under the same composing materials, composition ratio, volumetric heat generation rate, and total building block volume. The regular-triangular-prism--shaped blade has been proven to perform better than all the other three kinds of blades, namely, the regular-rectangular-prism--shaped blade, the regular-hexagonal-prism--shaped blade, and the cylinder--shaped blade. Thus, the regular-triangular-prism--shaped blade is selected as the optimally shaped blade for the two kinds of building blocks that are considered in this study. It is also proven that the constructal cylinder--regular-triangular-prism building block performs better than the constructal regular-rectangular-prism--regular-triangular-prism building block.
对于某些热传导系统，已证明纳米流体的叶片构型比分散构型的性能要好得多。对叶片构型的热传导系统（使用纳米流体作为热传导介质）的圆柱状和正长方体状构件进行了分析分析和数值计算，以在相同的组成材料、组成比、体积发热率和构件总体积下找到纳米颗粒叶片的最佳横截面形状。已证明正三棱柱状叶片的性能优于其他三种叶片，即正长方体状叶片、正六棱柱状叶片和圆柱状叶片。因此，选择正三棱柱状叶片作为本研究中考虑的两种构件的最佳形状叶片。还证明了结构圆柱 - 正三棱柱构件比结构正长方体 - 正三棱柱构件的性能更好。
