TY - JOUR T1 - Wall Temperature Effects on the Reynold Stress of Flat-Plate Turbulent Boundary Layer: A Numerical Investigation AU - Li , Xin AU - Yu , Changping AU - Li , Xinliang JO - Advances in Applied Mathematics and Mechanics VL - 3 SP - 653 EP - 663 PY - 2019 DA - 2019/01 SN - 11 DO - http://doi.org/10.4208/aamm.2018.s09 UR - https://global-sci.org/intro/article_detail/aamm/12988.html KW - Hypersonic, direct numerical simulation, wall temperature, Reynold stress. AB -
In this paper, direct numerical simulation (DNS) of spatially evolving flat-plate hypersonic turbulent boundary layer with free-stream Mach number 8 is used to study the effects of wall temperature on compressibility and Reynolds stress contribution. The DNS contains two cases with different wall temperatures, $T_w$/$T_\infty$=$10.03$ and $1.9$. The results show that lower wall temperature enhances both the compressibility and injection-and-sweeping motions near the wall.