کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4993345 1457619 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
LES of supersonic turbulent flow in nozzles and diffusers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
LES of supersonic turbulent flow in nozzles and diffusers
چکیده انگلیسی
Large-eddy simulations of supersonic nozzle and diffuser flows with circular cross-sections using high-order compact schemes and an explicit filtering version of the approximate deconvolution method are presented in this paper. Two flow cases each for nozzle and diffuser having different outlet to inlet area ratios are presented. The effect of the geometry variations on the Reynolds stresses as well as on the production and pressure-strain terms in their transport equations is demonstrated. A Green's function analysis of the Poisson equation for pressure fluctuations using LES data is presented and the results show similar trends as found in previous analyses using DNS data. The effects of geometry changes on the rapid and slow parts of pressure-strain correlations is also demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 61, Part B, October 2016, Pages 395-406
نویسندگان
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