| 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)
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| Corresponding Author | Yao, Wei(weiyao@imech.ac.cn) |
| Source Publication | JOURNAL OF PROPULSION AND POWER
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| 2024-02-06 | |
| Pages | 17 |
| ISSN | 0748-4658 |
| Abstract | 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. |
| Keyword | 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 |
| DOI | 10.2514/1.B39327 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001158534400001 |
| WOS Keyword | CONDITIONAL MOMENT CLOSURE ; LARGE-EDDY SIMULATION ; THERMAL NONEQUILIBRIUM ; NUMERICAL-SIMULATION ; MODEL ; COMBUSTION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Yao, Wei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94331 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation 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. |
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