This review provides recent advancements in the study of attachment-line boundary layer transition with emphasis on high-speed configurations.As a critical factor influencing aerodynamic performance and thermal manage...This review provides recent advancements in the study of attachment-line boundary layer transition with emphasis on high-speed configurations.As a critical factor influencing aerodynamic performance and thermal management in supersonic and hypersonic systems,the transition mechanisms of three-dimensional attachment-line boundary layers have emerged as a pivotal research frontier in high-speed aerodynamics.This review systematically summarizes the evolution of research on attachment-line boundary layer transition,from early theoretical foundations to modern computational and experimental breakthroughs.A critical examination is presented for two pivotal challenges in high-speed attachment-line boundary layer transition:The resolution of the Gaillard paradox and the leading-edge contamination mechanism.Through systematic synthesis of theoretical developments and empirical evidence,this review identifies critical knowledge gaps while proposing novel methodological approaches for attachment-line boundary layer transition analysis.The review culminates in a strategic framework outlining promising avenues for both fundamental inquiry into attachment-line phenomena and applied engineering solutions in flow control strategies.展开更多
基金supported by the National Natural Science Foundation of China(NSFC)(Grant Nos.12388101,12202242 and 12172195)the computational resources pro〓〓vided by the Yancheng Supercomputing Center(Grant No.20231001)。
文摘This review provides recent advancements in the study of attachment-line boundary layer transition with emphasis on high-speed configurations.As a critical factor influencing aerodynamic performance and thermal management in supersonic and hypersonic systems,the transition mechanisms of three-dimensional attachment-line boundary layers have emerged as a pivotal research frontier in high-speed aerodynamics.This review systematically summarizes the evolution of research on attachment-line boundary layer transition,from early theoretical foundations to modern computational and experimental breakthroughs.A critical examination is presented for two pivotal challenges in high-speed attachment-line boundary layer transition:The resolution of the Gaillard paradox and the leading-edge contamination mechanism.Through systematic synthesis of theoretical developments and empirical evidence,this review identifies critical knowledge gaps while proposing novel methodological approaches for attachment-line boundary layer transition analysis.The review culminates in a strategic framework outlining promising avenues for both fundamental inquiry into attachment-line phenomena and applied engineering solutions in flow control strategies.
