To further enhance the heat exchange performance of parallel corrugated fins (PCF), this study proposes perforation on PCF and comparison and analyze the velocity and temperature fields of PCF and perforated PCF(PPCF). It was found that perforation can reduce the thickness of the temperature boundary layer, thereby enhance the convective heat transfer efficiency. Under the operating conditions where Re is 9000-21000, the influence laws of the perforation position parameter Sl on the heat exchange performance were studied. The numerical simulation results show that when Sl = 5/4, the heat transfer enhancement effect of the perforated structure is the best. Based on the field synergy theory, the enhanced heat transfer mechanism of PPCF was analyzed. This research provides a new solution for the structural improvement of PCF.
Wu et al. (Thu,) studied this question.