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。
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.
作者
陈魁炟
徐让书
孙丹
徐龙
CHEN Kui-da;XU Rang-shu;SUN Dan;XU Long(College of Aero Engine,Shenyang Aerospace University,Shenyang 110136,China;CNPC Jichai Power Co.,Ltd.,Jinan 250300,China)
出处
《沈阳航空航天大学学报》
2023年第2期15-23,共9页
Journal of Shenyang Aerospace University
基金
国家自然科学基金(项目编号:52075346)。
关键词
超高压空气
气动特性分析
空气亥姆霍兹状态方程
热力学参数
输运物性参数
hyper-high pressure air
aerodynamic characteristic analysis
air Helmholtz energy equa‐tion of state
thermodynamic parameters
transport properties parameters
