Numerical simulation of sinusoidal corrugated fins and serrated fins performance at low temperature

Abstract

Abstract Due to promoting the disturbance of fluid and high heat transfer performance, sinusoidal wavy fins and serrated fins are used in plate fin heat exchangers (PFHE) for cryogenic system. In order to compare their flow and heat transfer performance difference at low temperature, this article adopts the numerical simulation method to investigate the flow and heat transfer characteristics of normal-temperature and low-temperature helium in corrugated wavy fin and serrated fin channels. The influence of different temperature and Reynolds numbers on the fin performance are analyzed. The results can provide theoretical guidance for the optimal design of cryogenic PFHE.