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Journal of Thermal Science

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2023 , Vol. 32 >Issue 1: 278 - 285

DOI: https://doi.org/10.1007/s11630-022-1717-3

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Effect of Inlet Pressure on Flow Characteristics in Cavity-Based Flameholder under Subatmospheric Pressure

  • HUANG Yakun ,
  • YAO Zhaohui ,
  • ZHU Zhixin ,
  • HE Xiaomin
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  • 1. National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China
    2. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    3. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China

网络出版日期: 2023-11-28

基金资助

This work was supported by the National Science and Technology Major Project (No. 2017- III-0008-0034).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022
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Effect of Inlet Pressure on Flow Characteristics in Cavity-Based Flameholder under Subatmospheric Pressure

  • HUANG Yakun ,
  • YAO Zhaohui ,
  • ZHU Zhixin ,
  • HE Xiaomin
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  • 1. National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China
    2. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    3. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China

Online published: 2023-11-28

Supported by

This work was supported by the National Science and Technology Major Project (No. 2017- III-0008-0034).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022
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摘要

凹腔基火焰稳定器有望应用于冲压发动机或加力燃烧室，它能够在高海拔低压环境下高效运行。细致的流场结构有助于理解火焰稳定器的火焰稳定性原理。试验测量了进口压力为0.04 – 0.10 MPa、马赫数为0.1和温度为300 K条件下凹腔及火焰稳定器中心截面和旁侧截面的流场结构。结果表明，进口压力对凹腔基火焰稳定器内部流动结构影响显著，钝体会影响凹腔中涡结构的生成。当进口压力由0.10 MPa降至0.04 MPa时，凹腔旁侧截面呈现出具有良好稳定性的典型双涡结构；而随着进口压力由0.10 MPa变化至0.06 MPa时，凹腔中心截面的涡结构由单涡结构逐渐变得涡结构不完整，并在进口压力为0.04 MPa时彻底消失。涡结构变化的原因是随着入口压力的降低，密度也随之降低，质量流率被吸引到钝体下游低压区的比例增加，从而导致涡流逐渐被拉扯和破坏。

关键词： cavity; flameholder; fluid-structure; low pressure; dual-vortex

本文引用格式

HUANG Yakun , YAO Zhaohui , ZHU Zhixin , HE Xiaomin . Effect of Inlet Pressure on Flow Characteristics in Cavity-Based Flameholder under Subatmospheric Pressure[J]. 热科学学报, 2023 , 32(1) : 278 -285 . DOI: 10.1007/s11630-022-1717-3

Abstract

Cavity-based flameholder is expected to be applied for ramjets or afterburners, which could work efficiently in the high-altitude space with low pressure. The detailed fluid structure helps to understand the flame stability principle of the flameholder. The fluid structure in the center section and side section of the cavity-based flameholder is experimentally measured at the inlet pressure of 0.04–0.10 MPa, Mach number of 0.1, and temperature of 300 K. Results indicate that the inlet pressure has a significant effect on the fluid-structure in the cavity. The bluff body affects the generation of the vortex in the cavity. As the inlet pressure decreases from 0.10 MPa to 0.04 MPa, the classical dual-vortex maintains excellent stability in the side section of the cavity. Whereas the single-vortex in the center section gradually becomes incomplete with the inlet pressure varying from 0.10 MPa to 0.06 MPa, and it disappears at 0.04 MPa. The reason is that with the reduction of inlet pressure, the density decreases as well, and the proportion of the mass flow rate attracted to the low-pressure area downstream of the bluff body increases, which leads to the vortex being gradually pulled and destroyed.

Key words： cavity; flameholder; fluid-structure; low pressure; dual-vortex

参考文献

[1] Zun C., Zhu X.B., Sun M.B., Wang Z.G., Experiments on flame stabilization in a scramjet combustor with a rear-wall-expansion cavity. International Journal of Hydrogen Energy, 2017, 42(43): 26752–26761.
[2] Pandey K.M., Choubey G., Ahmed F., Laskar D.H., Ramnani P., Effect of variation of hydrogen injection pressure and inlet air temperature on the flow-field of a typical double cavity scramjet combustor. International Journal of Hydrogen Energy, 2017, 42(32): 20824–20834.
[3] Sziroczak D., Smith H., A review of design issues specific to hypersonic flight vehicles. Progress in Aerospace Sciences, 2016, 84: 1–28.
[4] Roquemore W.M., Shouse D., Burrus D., Johnson A., Cooper C., Duncan B., Hsu K.Y., Katta V.R., Sturgess G.J., Vihinen I., Trapped vortex combustor concept for gas turbine engines. 39th Aerospace Science Meeting & Exhibit, Reno NV, United States, 2001, 0483: 1–16. DOI: 10.2514/6.2001-483.
[5] Barnes F.W., Segal C., Cavity-based flameholding for chemically-reacting supersonic flows. Progress in Aerospace Sciences, 2015, 76: 24–41.
[6] Huang Y.K., He X.M., Zhu Z.X., Zhu H.Y., Inlet pressure effects on subatmospheric flame stabilization with an optimum size of a cavity-based combustor. International Journal of Aerospace Engineering, 2020. DOI: 10.1155/2020/4126753.
[7] Jiang P., He X.M., Performance of a novel mixed-flow trapped vortex combustor for turboshaft engine. Aerospace Science and Technology, 2020, 105: 106034.
[8] Jin Y., Li Y.F., He X.M., Zhang J.Y., Jiang B., Wu Z.J., Song Y.Y., Experimental investigations on flow field and combustion characteristics of a model trapped vortex combustor. Applied Energy, 2014, 134: 257–269.
[9] Choubey G., Devarajan Y., Huang W., Mehar K., Tiwari M., Pandey K.M., Recent advances in cavity-based scramjet engine—a brief review. International Journal of Hydrogen Energy, 2019, 44(26): 13895–13909.
[10] Losurdo M., Bruno C., Patrignani L., Numerical simulations of trapped vortex combustors. Feasibility study of TVC integration in traditional GT combustion chambers. 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Sacramento, United States, 2006, 10: 7846–7860. 
DOI: 10.2514/6.2006-5140.
[11] Meyer T.R., Brown M.S., Fonov S., Goss L.P., Gord J.R., Shouse D.T., Belovich V.M., Roquemore W.M., Cooper C.S., Kim, E.S. Haynes J.M., Optical diagnostics and numerical characterization of a trapped-vortex combustor. 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Indianapolis, United States, 2002. DOI: 10.2514/6.2002-3863.
[12] Zhao D., Gutmark E., Goey P., A review of cavity-based trapped vortex, ultra-compact, high-g, inter-turbine combustors. Progress in Energy and Combustion Science, 2018, 66: 42–82.
[13] Zhang R.C., Bai N.J., Fan W.J., Yan W.H., Hao F., Yin C.M., Flow field and combustion characteristics of integrated combustion mode using cavity with low flow resistance for gas turbine engines. Energy, 2018, 165: 979–996.
[14] Shanbhogue S.J., Husain S., Lieuwen T., Lean blowoff of bluff body stabilized flames: Scaling and dynamics. Progress in Energy and Combustion Science, 2009, 35: 98–120.
[15] Ezhil Kumar P.K., Mishra D.P., Numerical simulation of cavity flow structure in an axisymmetric trapped vortex combustor. Aerospace Science and Technology, 2012, 21(1): 16–23.
[16] Khalil H., Saqr K., Eldrainy Y., Abdelghaffar W., Aerodynamics of a trapped vortex combustor: A comparative assessment of RANS based CFD models. Fluid Mechanics and Thermal Sciences, 2018, 43(1): 1–19.
[17] Mahto N.K., Choubey G., Suneetha L., Pandey K.M., Effect of variation of length-to-depth ratio and Mach number on the performance of a typical double cavity scramjet combustor. Acta Astronautica, 2016, 128: 540–550.
[18] Zhang R.C., Fan W.J., Flow field measurements in the cavity of a trapped vortex combustor using PIV. Journal of Thermal Science, 2012, 21: 359–367.
[19] Ezhil Kumar P.K., Mishra D.P., Numerical study of reacting flow characteristics of a 2D twin cavity trapped vortex combustor. Combustion Theory and Modelling, 2017, 21(4): 658–676.
[20] Kumar M., Vaidyanathan A., On shock train interaction with cavity oscillations in a confined supersonic flow. Experimental Thermal and Fluid Science, 2018, 90: 260–274.
[21] Merlin C., Domingo P., Vervisch L., Large Eddy Simulation of turbulent flames in a Trapped Vortex Combustor (TVC)—A flamelet presumed-pdf closure preserving laminar flame speed. Comptes Rendus Mécanique, 2012, 340(11): 917–932.
[22] Hernandez R., Troiani G., Pagliaroli T., Hernandez-Guerrero A., Chaotic analysis of the thermoacoustic instabilities of a trapped vortex combustor. 2018 AIAA/CEAS Aeroacoustics Conference, United States, 2018, pp. 1–12. 
DOI: 10.2514/6.2018-4104.
[23] Agarwal K.K., Krishna S., Ravikrishna R.V., Mixing enhancement in a compact trapped vortex combustor. Combustion Science and Technology, 2013, 185(3): 363–378.
[24] Zhu Z.X., Huang Y.K., Zhang H.W., He X.M., Combustion performance in a cavity-based combustor under subatmospheric pressure. Fuel, 2021, 302(15): 121115.
[25] Okai K., Himeno T., Watanabe T., Kobayashi H., Taguchi H., Investigation of combustion and altitude-ignition performance of a small hydrogen-fueled reversed-flow turbine combustor. 52nd Aerospace Sciences Meeting, Maryland, United States, 2014, pp. 1–9. 
DOI: 10.2514/6.2014-1541.
[26] Huang Y.K., He X.M., Jiang P., Zhu H.Y., Effect of non-uniform inlet velocity profile on flow field characteristics of a bluff body. Experimental Thermal and Fluid Science, 2020, 118: 110152.
[27] Jiang B., Jin Y., Liu D., Wu Z.J., Ding G.Y., Zhu Z.X., He X.M., Effects of multi-orifice configurations of the quench plate on mixing characteristics of the quench zone in an RQL-TVC model. Experimental Thermal and Fluid Science, 2017, 83: 57–68.
[28] Huang Y.K., He X.M., Zhang H.W., Zhu Z.X., Zhu H.Y., Flame stability optimization of cavity primary air-jet form in an augmentor. Energy, 2022, 239: 121801.
[29] Wu Z.J., He X.M., Investigations on emission characteristics of a liquid-fueled trapped vortex combustor. Journal of Thermal Science, 2020, 29: 69–80. 
[30] Krishna S., Ravikrishna R.V., Optical diagnostics of fuel-air mixing and vortex formation in a cavity combustor. Experimental Thermal and Fluid Science, 2015, 61: 163–176.
[31] Ezhil Kumar P.K., Mishra D.P., Numerical investigation of the flow and flame structure in an axisymmetric trapped vortex combustor. Fuel, 2012, 102: 78–84.
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