燃烧器宏观结构对新型逆旋转径向旋流喷 injector 燃烧动力学的影响
高能物理 - 实验
2026-02-19 v2 仪器与探测器
摘要
本研究探讨了在具有新型逆旋转旋流喷器的模型燃烧器中观察到的自维持热声振荡的燃烧宏观结构。旋流喷器设计为高剪切，使60%的气流通过主通道，40%通过次通道，径向燃料通过中心lance注入。为考察燃烧宏观结构对燃烧不稳定性的影响，系统地变更了燃烧器dump平面的流展角。本研究考虑三种不同的flare角（90°、60°、40°），其对应的雷诺数和热功范围为10500-16800和10-16.2 kW。进行声压、高速立体PIV和高速OH*化学发光测量，以细致考察燃烧不稳定时的流和燃烧宏观结构。观察到在flare角为40°时出现大幅度声学振荡，伴随较短的燃烧和较大的中心回流区；相比，flare角为90°时表现为低幅度声学振荡，特征为较长的燃烧和较窄的中心回流区。采用相平均Rayleigh指数来确定驱动或抑制热声振荡的区域，从而识别潜在的抑制策略。此外，采用时序分析揭示了主导声学模式及其与热释放率波动之间的相互作用。
引用
@article{arxiv.2506.20137,
title = {Operation of the Trigger System for the ICARUS Detector at Fermilab},
author = {ICARUS collaboration and F. Abd Alrahman and P. Abratenko and N. Abrego-Martinez and A. Aduszkiewicz and F. Akbar and L. Aliaga Soplin and M. Artero Pons and J. Asaadi and W. F. Badgett and B. Baibussinov and F. Battisti and V. Bellini and R. Benocci and J. Berger and S. Berkman and S. Bertolucci and M. Betancourt and A. Blanchet and F. Boffelli and M. Bonesini and T. Boone and B. Bottino and A. Braggiotti and D. Brailsford and S. J. Brice and V. Brio and C. Brizzolari and H. S. Budd and A. Campani and A. Campos and D. Carber and M. Carneiro and I. Caro Terrazas and H. Carranza and F. Castillo Fernandez and S. Centro and G. Cerati and A. Chatterjee and D. Cherdack and S. Cherubini and N. Chithirasreemadam and M. Cicerchia and T. E. Coan and A. Cocco and M. R. Convery and L. Cooper-Troendle and S. Copello and H. Da Motta and M. Dallolio and A. A. Dange and A. de Roeck and S. Di Domizio and D. Di Ferdinando and L. Di Noto and M. Diwan and S. Dolan and L. Domine and S. Donati and F. Drielsma and J. Dyer and S. Dytman and A. Falcone and C. Farnese and A. Fava and N. Gallice and F. G. Garcia and C. Gatto and D. Gibin and A. Gioiosa and W. Gu and A. Guglielmi and G. Gurung and K. Hassinin and H. Hausner and A. Heggestuen and B. Howard and R. Howell and Z. Hulcher and I. Ingratta and C. James and W. Jang and Y. -J. Jwa and L. Kashur and W. Ketchum and J. S. Kim and D. -H. Koh and T. Krishnan and J. Larkin and Y. Li and C. Mariani and C. M. Marshall and S. Martynenko and N. Mauri and K. S. McFarland and A. Menegolli and G. Meng and O. G. Miranda and A. Mogan and N. Moggi and E. Montagna and A. Montanari and C. Montanari and M. Mooney and G. Moreno-Granados and J. Mueller and M. Murphy and D. P. Méndez and D. Naples and S. Palestini and M. Pallavicini and V. Paolone and L. Pasqualini and L. Patrizii and L. Paudel and G. Petrillo and C. Petta and V. Pia and F. Pietropaolo and F. Poppi and M. Pozzato and M. L. Pumo and G. Putnam and X. Qian and A. Rappoldi and G. L. Raselli and S. Repetto and F. Resnati and A. M. Ricci and E. Richards and M. Rosenberg and M. Rossella and N. Rowe and P. Roy and C. Rubbia and M. Saad and S. Saha and G. Salmoria and S. Samanta and A. Scaramelli and D. Schmitz and A. Schukraft and D. Senadheera and S-H. Seo and F. Sergiampietri and G. Sirri and J. S. Smedley and J. Smith and M. Sotgia and L. Stanco and J. Stewart and H. A. Tanaka and M. Tenti and K. Terao and F. Terranova and V. Togo and D. Torretta and M. Torti and F. Tortorici and D. Totani and R. Triozzi and Y. -T. Tsai and K. V. Tsang and T. Usher and F. Varanini and N. Vardy and S. Ventura and M. Vicenzi and C. Vignoli and B. Viren and F. A. Wieler and Z. Williams and P. Wilson and R. J. Wilson and J. Wolfs and T. Wongjirad and A. Wood and E. Worcester and M. Worcester and M. Wospakrik and J. Xia and S. Yadav and H. Yu and J. Yu and A. Zani and J. Zennamo and J. Zettlemoyer and C. Zhang and S. Zucchelli},
journal= {arXiv preprint arXiv:2506.20137},
year = {2026}
}
备注
22 pages, 16 figures