超高压空气的热物性计算

陈魁炟; 徐让书; 孙丹; 徐龙

doi:10.3969/j.issn.2095-1248.2023.02.003

沈阳航空航天大学学报 ›› 2023, Vol. 40 ›› Issue (2) : 15 -23. DOI: 10.3969/j.issn.2095-1248.2023.02.003

航空宇航工程

超高压空气的热物性计算

陈魁炟 ¹ ,
徐让书 ¹ ,
孙丹 ¹ ,
徐龙 ²

作者信息 +

Thermal properties calculation of hyper-high pressure air

Kui-da CHEN ¹ ,
Rang-shu XU ¹ ,
Dan SUN ¹ ,
Long XU ²

Author information +

文章历史 +

PDF (1255K)

摘要

为研究高超声速风洞部件的气动特性，运用空气的亥姆霍兹能状态方程和输运物性方程组，计算超高压工况下空气的热物性参数。将计算结果与美国国家标准与技术研究院（National Institute of Standards and Technology，NIST）数据库的实验数据进行比较，得到相对误差值。结果表明，空气亥姆霍兹能状态方程和输运物性方程组计算得到的空气热物性参数与NIST标准实验数据相比误差较小，可以应用于超高压状态下的空气热物性计算。

Abstract

In order to investigate the aerodynamic characteristics of hypersonic wind tunnel components， the air Helmholtz energy equation of state and transport physical property equations of air were used to calculate the thermal physical property parameters of air under hyper-high pressure conditions. The relative error values were obtained by comparing the calculated results with experimental data from the National Institute of Standards and Technology （NIST） database. The results show that the error of the air thermal property parameters obtained from the Helmholtz energy equation of state and the transport physical property equations is smaller than the NIST standard experimental data， which can be applied to the calculation of air thermal property under hyper-high pressure.