TY - JOUR
TI - Numerical simulation of louver fin heat exchangers with vortex generators
AU - Cao Kan
AU - Yu Bowen
AU - Tian Chunlai
AU - Yuan Yaohua
AU - Kang Zhiwei
AU - Tan Zezi
JN - Thermal Science
PY - 2025
VL - 29
IS - 3
SP - 1889
EP - 1897
PT - Article
AB - This paper proposes a new type of vortex generator fin structure and employs  CFD method to simulate the fin structure. It then studies the temperature  and flow fields of vortex generator fins and ordinary louver fins, and  compares the heat transfer and flow resistance characteristics of the two  types of fins. The results indicate that when the Reynolds number is between  100 and 500, the heat transfer factor of the novel fin structure exhibits an  increase of 5.05% to 8.35%, while its resistance factor shows a rise of  5.77% to 12.14%. Furthermore, the comprehensive factor of the fin structure  demonstrates an enhancement of 3.11% to 4.29%. Additionally, the Ω criterion  indicates that the distribution of vortices between the fins is uniform,  and a longitudinal vortex network is generated between the fins due to the  presence of vortex generators. This results in a higher average temperature  near the fins compared to ordinary fins, as well as a faster temperature  rise. This paper serves as a reference for further research on  high-efficiency finned heat exchangers.