Abstract

Dual-stream nozzle jet computations conducted using different numerical algorithms developed at Zhukovsky Central Aerohydrodynamic Institute (TsAGI) and Keldysh Institute of Applied Mathematics, Russian Academy of Sciences (KIAM RAS) are presented. The scale-resolving approaches of the DES family based on higher accuracy numerical methods are applied. The flow considered is studied experimentally at Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences (ITAM SB RAS). The jet is axisymmetric up to the effect of the supporting pylons, cold, subsonic at the inner nozzle exit, and supersonic at the outer nozzle exit. The computational data are compared with the experiment and with each other.

中文翻译：

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两种用于双流喷嘴射流仿真的高精度非结构化尺度分解方法的比较

摘要

介绍了使用在科科夫中央空气流体力学研究所（TsAGI）和俄罗斯科学院凯尔迪什应用数学研究所（KIAM RAS）开发的不同数值算法进行的双流喷嘴喷射计算。应用了基于高精度数值方法的DES族尺度分解方法。所考虑的流动在俄罗斯科学院西伯利亚分校的Khristianovich理论和应用力学研究所（ITAM SB RAS）中进行了实验研究。射流是轴对称的，直到支撑塔的作用冷，在内部喷嘴出口处为亚音速，在外部喷嘴出口处为超音速。将计算数据与实验以及彼此进行比较。