Finite-rate chemistry effects in turbulent hypersonic boundary layers: A direct numerical simulation study
Finite-rate chemistry effects in turbulent hypersonic boundary layers: A direct numerical simulation study
复制标题
DOI：
10.1103/physrevfluids.6.054604
复制
发表时间：
2021-03
影响因子：
2.7
通讯作者：
D. Passiatore;L. Sciacovelli;P. Cinnella;G. Pascazio
中科院分区：
文献类型：
--
作者：
D. Passiatore;L. Sciacovelli;P. Cinnella;G. Pascazio
高超声速流动的精确预测是再入体或高超声速飞行器设计的一个关键挑战。尤其需要关于壁面湍流的知识。本文的工作是对受高焓效应影响的湍流空间发展平板边界层的基础研究。采用直接数值模拟的方法研究了典型的高速状态下空气化学反应的影响。一阶和二阶统计量，以及光谱含量和经典相关性被准确地检查。
The accurate prediction of hypersonic flows is a key challenge for the design of reentry bodies or hypersonic aircraft. Knowledge concerning the wall-bounded turbulence is especially needed. The present work is a fundamental study of a turbulent spatially developing flat-plate boundary layer subjected to high-enthalpy effects. The influence of air chemical reactions, typical of high-speed regimes, is investigated by means of direct numerical simulations. First- and second-order statistics are accurately examined, as well as spectral content and classical correlations.