کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146728 | 1497375 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Parametric effect on the flow and mixing properties of transverse gaseous injection flow fields with streamwise slot: A numerical study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Mixing process between the injectant and air in supersonic crossflow depends on the injector configuration and the jet-to-jet spacing heavily. In the current study, the three-dimensional Reynolds-averaged Navier-Stokes (RANS) equations coupled with the two equation SST k-Ï turbulence model were employed to simulate the mixing process induced by an array of three spanwise-aligned small-scale rectangular portholes, and the influences of the jet-to-jet spacing, the jet-to-crossflow pressure ratio and the aspect ratio of the injector on the flow field properties were evaluated. Two quantitative objectives were considered in this article, namely the fuel penetration depth and the mixing efficiency. The obtained results show that the flow field induced by the array of three spanwise-aligned small-scale rectangular portholes is a multiobjective design optimization problem, and the large aspect ratio is beneficial for the mixing enhancement in supersonic crossflow. However, it is not beneficial for the flame holding. The interaction between the adjacent injectors has a great impact on the fuel penetration depth in the far-field, especially for the larger jet-to-crossflow pressure ratio, and this is due to its wider fuel plume.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 2, 12 January 2017, Pages 1252-1263
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 2, 12 January 2017, Pages 1252-1263
نویسندگان
Wei Huang, Lang-quan Li, Xiao-qian Chen, Li Yan,