001041816 001__ 1041816
001041816 005__ 20250514202226.0
001041816 0247_ $$2doi$$a10.34734/FZJ-2025-02450
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001041816 037__ $$aFZJ-2025-02450
001041816 041__ $$aEnglish
001041816 1001_ $$0P:(DE-HGF)0$$aXu, Yifan$$b0
001041816 1112_ $$a35th Parallel CFD International Conference 2024$$cBonn$$d2024-09-02 - 2024-09-04$$gParCFD 2024$$wGermany
001041816 245__ $$aDNS of a Hydrogen Flame Interacting With Homogeneous Isotropic Turbulence Maintained by a Deterministic Force
001041816 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2025
001041816 29510 $$aProceedings of the 35th Parallel CFD International Conference 2024
001041816 300__ $$a40 - 43
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001041816 4900_ $$aSchriften des Forschungszentrums Jülich IAS Series$$v69
001041816 520__ $$aStudying the interplay between a hydrogen flame and turbulence is crucial for the advancement of next-generation carbon-neutral combustion systems. In our present work, we conduct a series of direct numerical simulations (DNS) to investigate the dynamics of a premixed hydrogen flame interacting with the compressible homogeneous isotropic turbulence (HIT) maintained by a deterministic force under different pressure and turbulence intensity. Under this particular forcing method applied to turbulence at large scales, the relationship between the forcing intensity and the resulting fluctuating velocity aligns well with the experimental results. In our study, we compared the normalized turbulent burning velocity of hydrogen flames under different conditions, verified the common occurrence of bending effects at elevated pressures and validated existed turbulent burning velocity models. To further explore the dynamics of the HIT-flame interaction and fully leverage the advantages of high-precision direct numerical simulations, we analyzed several flame behaviors such as stretch and instability. The probability density functions (PDF) for the tangential strain rate and curvature are displayed and the results indicate a strong correlation between the flame surface structure and the turbulence generated by the large-scale forcing.
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001041816 7001_ $$0P:(DE-HGF)0$$aFang, Jian$$b1$$eCorresponding author
001041816 7001_ $$0P:(DE-HGF)0$$aLu, Zhen$$b2
001041816 7001_ $$0P:(DE-HGF)0$$aGu, Xiaojun$$b3
001041816 7001_ $$0P:(DE-HGF)0$$aChen, Zhi X.$$b4
001041816 770__ $$z978-3-95806-819-3
001041816 773__ $$a10.34734/FZJ-2025-02450
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