کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468468 | 1518936 | 2016 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical and experimental studies on transport properties of powder ejector based on double venturi effect
ترجمه فارسی عنوان
مطالعات عددی و تجربی بر روی خواص حمل و نقل ریخته گری پودر بر اساس اثر دو ونتوری
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
چکیده انگلیسی
The venturi ejector can form vacuum fields to transport particles due to venturi effect. The transportation performance of powder ejectors based on single- and double-venturi effect and the influence of nozzle position on the transportation performance were respectively investigated by the experimental method and the numerical simulation based on the CFD-DEM coupling method. The present results show the wind speed of the particle inlet increases due to the double-venturi effect, which is beneficial for particles into the injector; the driving force exerting on particles by fluid increases, meaning that particles can be transported to a long distance; the closer the nozzle is to the export, the greater the wind speed of the particle inlet is and the greater the suction force exerting on particles is; the closer the nozzle is to the export, the less the deposition number of particles in the injector is; however, particles can be hindered into the venturi tube if the nozzle is very close to the export. Additionally, in order to reduce the particle deposition, the optimal solution is presented here, namely, the nozzle position away from the export, yâ = 30 mm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 134, December 2016, Pages 92-98
Journal: Vacuum - Volume 134, December 2016, Pages 92-98
نویسندگان
Jing Xu, Xuedong Liu, Mingjun Pang,