Abstract

The Reynolds-averaged Navier–Stokes (RANS)/Implicit Large Eddy Simulation (ILES) method is applied to analyze the effect of variable heat capacity on the flow characteristics and pressure pulsation spectra for various operation modes of a model high-speed air intake. The dependence of the heat capacity on temperature is described by a fourth-degree polynomial. The calculation method and the technique for calculating the high-order heat capacity on the faces of the computational cells consistent with the technique for calculating flow parameters are briefly outlined. The calculations are performed under the incoming flow temperature corresponding to real flight conditions.

中文翻译：

---

使用RANS / ILES方法分析可变热容量对高速进气中压力脉动特性的影响

摘要

采用雷诺平均的Navier-Stokes（RANS）/隐式大涡模拟（ILES）方法来分析可变热容对高速进气模型的各种运行模式的流量特性和压力脉动谱的影响。热容量对温度的依赖性由四次多项式描述。简要概述了与计算流动参数的技术相一致的计算单元表面的高阶热容的计算方法和技术。该计算是在与实际飞行条件相对应的进入流温度下进行的。