Nonequilibrium Heating/Cooling Effects in a Mach Number 10 Hydrogen-Fueled Scramjet

doi:10.2514/1.B39327

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Nonequilibrium Heating/Cooling Effects in a Mach Number 10 Hydrogen-Fueled Scramjet
	Liu H(刘杭); Yao W(姚卫); Zhang X(张旭); Zhang XY(张晓源); Liu, Jianwen; Yue LJ(岳连捷); Sun QH(孙泉华)
刊名	JOURNAL OF PROPULSION AND POWER
	2024-02-06
页码	17
关键词	Scramjet Dynamic Zone Flamelet Model High Enthalpy Shock Tunnel Combustors Improved Delayed Detached Eddy Simulation Vibrational Energy nonequilibrium heating cooling effects thermal nonequilibrium chemical nonequilibrium hydrogen
ISSN号	0748-4658
DOI	10.2514/1.B39327
通讯作者	Yao, Wei(weiyao@imech.ac.cn)
英文摘要	The influence of thermal/chemical nonequilibrium on a hydrogen-fueled Ma 10 scramjet was analyzed by combining the JF-2 4 s hock tunnel test and improved delayed detached eddy simulation modeling. A remarkable change in flame stabilization mode when incorporating the two-temperature nonequilibrium model was observed. The nonequilibrium heating and cooling effects were analyzed for different sections of the scramjet. The nonequilibrium heating effect facilitates the upstream flame propagation by inducing an early ignition and thickening the inlet boundary layer. The nonequilibrium heating or cooling effect is generally weak in the nearly constant-area isolator and combustor, where the flow is mainly influenced by the chemical nonequilibrium with a variation of 10% in reaction rate. The nonequilibrium cooling effect mainly exists in the expanding nozzle, where T-v>T-t, but the energy replenishment from vibrational mode to trans-rotational mode is nearly frozen when T-t<1000 K. Under both conditions, the final mixing is nearly complete, and net thrust has been achieved. When considering the nonequilibrium effects, the final combustion efficiency increases from 87.68 to 99%, together with a 53.94% rise in peak pressure ratio and a 137.04% rise in specific impulse.
分类号	二类
资助项目	National Key Research and Development Program of Chinahttp://dx.doi.org/10.13039/501100012166[2021YFA0719204] ; National Key Research and Development Program of China[12272387] ; National Natural Science Foundation of China[XDB0500301] ; Strategic Project B of Chinese Academy of Sciences[WDZC6142703202214] ; Fund of Key Laboratory of Defense Science and Technology
WOS关键词	CONDITIONAL MOMENT CLOSURE ; LARGE-EDDY SIMULATION ; THERMAL NONEQUILIBRIUM ; NUMERICAL-SIMULATION ; MODEL ; COMBUSTION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001158534400001
资助机构	National Key Research and Development Program of Chinahttp://dx.doi.org/10.13039/501100012166 ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Strategic Project B of Chinese Academy of Sciences ; Fund of Key Laboratory of Defense Science and Technology
其他责任者	Yao, Wei
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94330]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Liu H,Yao W,Zhang X,et al. Nonequilibrium Heating/Cooling Effects in a Mach Number 10 Hydrogen-Fueled Scramjet[J]. JOURNAL OF PROPULSION AND POWER,2024:17.
APA	刘杭.,姚卫.,张旭.,张晓源.,Liu, Jianwen.,...&孙泉华.(2024).Nonequilibrium Heating/Cooling Effects in a Mach Number 10 Hydrogen-Fueled Scramjet.JOURNAL OF PROPULSION AND POWER,17.
MLA	刘杭,et al."Nonequilibrium Heating/Cooling Effects in a Mach Number 10 Hydrogen-Fueled Scramjet".JOURNAL OF PROPULSION AND POWER (2024):17.