Page 438 - IJB-9-6

International Journal of Bioprinting Versatile pomelo peel-inspired structures

Figure 14. The various heat dissipation performance indices between BPPSs and Fins at Re = 2700 with airflow in the X direction. (A) Maximal temperature
of the entire heat sink in steady state. (B) Specific surface area of various BPPSs and Fins. (C) Thermal resistance of heat sink. (D) Heat transfer efficiency
index of heat sink.

(iii) At Re = 2700–13,400, the heat dissipation Acknowledgments
performance of BPPSs improved with the decrease None.
of VFs, when air flowed along X and Y directions.
The η of BPPS-30% were 10%–17%, 24%–28%, and Funding
43%–52% higher than that of others with different
VFs, which could be attributed to the formation We are grateful for the support given by the National Natural
of more vortices, more flow paths, and higher Science Foundation of China (No. 52225503), the Key
specific surface area. Due to the tortuous flow Research and Development Program of Jiangsu Province
paths inside BPPSs and the higher specific surface (Nos. BE2022069 and BE2022069-1), the National Natural
area, the η of BPPSs with VFs of 45%, 40%, 35%, Science Foundation of China for Creative Research Groups
and 30% were 39.6%, 39.8%, 43.7%, and 44.2% (No. 51921003), and the Postgraduate Research & Practice
remarkably higher than that of the corresponding Innovation Program of Nanjing University of Aeronautics
Fins, respectively. and Astronautics (xcxjh20220606).

Volume 9 Issue 6 (2023) 430 https://doi.org/10.36922/ijb.1011