Volume 37 Issue 1
Jan.  2022
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LIANG Dong, CHEN Wei, HU Yong, ZHANG Jianpeng, CHYU Minking. Influences of lattice unit type and arrangement orientation on heat transfer characteristics[J]. Journal of Aerospace Power, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067
Citation: LIANG Dong, CHEN Wei, HU Yong, ZHANG Jianpeng, CHYU Minking. Influences of lattice unit type and arrangement orientation on heat transfer characteristics[J]. Journal of Aerospace Power, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067

Influences of lattice unit type and arrangement orientation on heat transfer characteristics

doi: 10.13224/j.cnki.jasp.20210067
  • Received Date: 2021-02-15
  • Publish Date: 2022-01-28
  • Based on the transient liquid crystals technology and numerical simulation,the influences of truss-type lattice unit type and arrangement orientation on convective heat transfer characteristics for a given porosity were analyzed.Experimental results showed that the convective heat transfer performance was mainly determined by the unit type.Due to excellent heat transfer enhancement,within Reynolds number 5 700-17 100,the staggered body centered cubic-0 (BCC-0) lattice and the Kagome-0 lattice exhibited 9%-21% and 4%-12% higher overall thermal efficiency compared with the pin fin array.In contrast,the inline face centered cubic (FCC) lattices showed a lower heat transfer performance.For the same unit type,choosing a suitable arrangement angle was conducive to further improving the thermal performance.For instance,the thermal efficiency of the Kagome-90 and the BCC-0 were 3%-10% and 5%-15% higher than that of the Kagome-0 and the BCC-45,respectively.

     

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