کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1717562 1520079 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ground experimentation with 3D printed scramjet inlet models at hypervelocities
ترجمه فارسی عنوان
آزمايش زمين با مدل هاي ورودي سه‌بعدي چاپ شده در هيبرالوتيويت ها
کلمات کلیدی
نمونه سازی 3D؛ CAD؛ CFD؛ FEA؛ تونل هوای نفوذی Hyperpersonic؛ Scramjet
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

3D printing technologies have gained acceptance by aerospace engineers as an alternative way for manufacturing models for experimentation in wind tunnels. This paper addresses ground experimentations with polymer-based 3D printed models of a single ramp scramjet inlet at Mach number near to 7.5 done in the T2 impulse hypersonic wind tunnel at IEAv. CAD models, shock wave theory, CFD simulations, and FEA predictions were all employed in synergy prior to fabrication of models by FDM and PolyJet 3D printing technologies. This methodology is shown in details herein. Based on high-speed schlieren imaging of the interaction between the 3D printed scramjet inlet and the hypersonic airflow, these 3D printed models have yielded satisfactory aerodynamic performance, showing reasonable thermal and structural survivability under dynamic pressure around 58,6 MPa. Also, the 3D printed scramjet inlets tested herein have shown remarkable versatility in terms of fabrication cost, elapsed time and model handling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 55, August 2016, Pages 307–313
نویسندگان
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