网络首发:2026-10-10,
纸质出版:2026
移动端阅览
郭航宇, 张嘉欣, 李雪芳, 等. 虚喷嘴模型在氢气射流参数预测中的适用性分析[J]. 太阳能学报, 2026,47(9):114-122.
郭航宇, 张嘉欣, 李雪芳, et al. 虚喷嘴模型在氢气射流参数预测中的适用性分析[J]. 2026, 47(9): 114-122.
郭航宇, 张嘉欣, 李雪芳, 等. 虚喷嘴模型在氢气射流参数预测中的适用性分析[J]. 太阳能学报, 2026,47(9):114-122. DOI: 10.19912/j.0254-0096.tynxb.2025-0680.
郭航宇, 张嘉欣, 李雪芳, et al. 虚喷嘴模型在氢气射流参数预测中的适用性分析[J]. 2026, 47(9): 114-122. DOI: 10.19912/j.0254-0096.tynxb.2025-0680.
高压氢气发生泄漏时
近场区域会形成具有复杂激波的欠膨胀射流
使得低压射流积分模型无法直接应用于该场景。通常使用虚喷嘴模型为积分模型提供等效边界条件
但不同虚喷嘴模型与积分模型结合的效果有待评估。该文将常用的几种虚喷嘴模型与积分模型相结合
通过与实验数据对比评估了不同虚喷嘴模型与积分模型结合后的计算精度。研究结果表明:未采用动量守恒方程的虚喷嘴模型计算结果与实验测量值基本一致;而添加了动量守恒方程的虚喷嘴模型预测的质量通量更大
射流出口速度更高
浓度的衰减率更大
导致预测结果与实验数据相差较大。
Underexpanded jets generated by high-pressure hydrogen leakage develop complex shock wave structures in the near-field region
making the conventional low-pressure jet integral model inapplicable for underexpanded jets. While notional nozzle models are usually used to provide equivalent boundary conditions for the integral model
the performance of combining different notional nozzle models with the integral model needs to be evaluated. This study combines several commonly used notional nozzle models with the integral model
and evaluates the calculation accuracy based on experimental data. The results show that the predictions agree well with the experimental data for the notional nozzle models that do not assume momentum conservation. However
for the notional nozzle models conserving momentum
the predicted nozzle exit mass flux
velocity and centerline concentration decay rate are larger
resulting in a significant deviation from the experimental data.
张盛, 郑津洋, 戴剑锋, 等. 可再生能源大规模制氢及储氢系统研究进展[J]. 太阳能学报, 2024, 45(1): 457-465.
李军, 薄柯, 黄强华, 等. 高压氢气储运移动式压力容器发展趋势与挑战[J]. 太阳能学报, 2022, 43(3): 20-26.
邝辰, 刘迪, 杨昊, 等. 氢气泄漏后燃爆风险研究现状综述[J]. 安全、健康和环境, 2021, 21(9): 1-5.
王桂芸, 胡辰树, 刘光辉, 等. 车库内不同车型燃料电池汽车氢泄漏仿真模拟[J]. 太阳能学报, 2024, 45(10): 48-53.
郑津洋, 刘自亮, 花争立, 等. 氢安全研究现状及面临的挑战[J]. 安全与环境学报, 2020, 20(1): 106-115.
Ruggles A J, Ekoto I W.Experimental investigation of nozzle aspect ratio effects on underexpanded hydrogen jet release characteristics[J]. International Journal of Hydrogen Energy, 2014, 39(35): 20331-20338.
Ruggles A J, Ekoto I W.Ignitability and mixing of underexpanded hydrogen jets[J]. International Journal of Hydrogen Energy, 2012, 37(22): 17549-17560.
李雪芳, 王俞杰, 罗峰, 等. 欠膨胀氢气射流激波结构数值模拟研究[J]. 工程热物理学报, 2018, 39(4): 880-886.
Birch A D, Brown D R, Dodson M G, et al.The structure and concentration decay of high pressure jets of natural gas[J]. Combustion Science and Technology, 1984, 36(5/6): 249-261.
Birch A D, Hughes D J, Swaffield F.Velocity decay of high pressure jets[J]. Combustion Science and Technology, 1987, 52(1/2/3): 161-171.
Yüceil K B, Ötügen M V.Scaling parameters for underexpanded supersonic jets[J]. Physics of Fluids, 2002, 14(12): 4206-4215.
Molkov V, Makarov D, Bragin M.Physics and modelling of under-expanded jets and hydrogen dispersion in atmosphere[C]//Physics of Extreme States of Matter-2009. 2009: 146-149.
Tchouvelev A V.Knowledge gaps in hydrogen safety, a white paper[R]. Paris: IEA-HIA Task 19, 2008.
李雪芳. 储氢系统意外氢气泄漏和扩散研究[D]. 北京: 清华大学, 2015.
Xiao J, Travis J R, Breitung W.Hydrogen release from a high pressure gaseous hydrogen reservoir in case of a small leak[J]. International Journal of Hydrogen Energy, 2011, 36(3): 2545-2554.
Ewan B C R, Moodie K. Structure and velocity measurements in underexpanded jets[J]. Combustion Science and Technology, 1986, 45(5/6): 275-288.
Houf W, Schefer R.Analytical and experimental investigation of small-scale unintended releases of hydrogen[J]. International Journal of Hydrogen Energy, 2008, 33(4): 1435-1444.
Winters W S, Houf W G.Simulation of small-scale releases from liquid hydrogen storage systems[J]. International Journal of Hydrogen Energy, 2011, 36(6): 3913-3921.
Li X F, Hecht E S, Christopher D M.Validation of a reduced-order jet model for subsonic and underexpanded hydrogen jets[J]. International Journal of Hydrogen Energy, 2016, 41(2): 1348-1358.
Ricou F P, Spalding D B.Measurements of entrainment by axisymmetrical turbulent jets[J]. Journal of Fluid Mechanics, 1961, 11(1): 21-32.
List E J, Imberger J.Turbulent entrainment in buoyant jets and plumes[J]. Journal of the Hydraulics Division, 1973, 99(9): 1461-1474.
0
浏览量
1
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621