کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4990837 1457101 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation on the overall cooling effectiveness of t-type impinging-film cooling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Experimental investigation on the overall cooling effectiveness of t-type impinging-film cooling
چکیده انگلیسی
This paper presents an experimental investigation of impinging-film cooling concerning the effects of various factors on overall cooling effectiveness η. The factors include blowing ratio M (0.31 ≤ M ≤ 1.84), non-dimensional jet-to-plate pitch Zn/d (1 ≤ Zn/d ≤ 2), non-dimensional spacing of jet holes Yn/d (1.6 ≤ Yn/d ≤ 2.4) and diameter of jet hole. The results show that overall cooling effectiveness invariably increases with a raise in blowing ratio. As non-dimensional jet-to-plate pitch increases, the cooling performs better. The decline of non-dimensional spacing of jet holes improves the overall cooling effectiveness at higher blowing ratios (M ≥ 0.91), which was not observed in cases with low blowing ratios (M ≤ 0.61). The variation of hole diameter (1.0-1.8 mm) has little influence on cooling performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 128, 5 January 2018, Pages 595-603
نویسندگان
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