کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7157024 1462696 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of the deviation of the current density profile center on the three-dimensional non-transferred arc plasma torch
ترجمه فارسی عنوان
اثر انحراف از مرکز مشخصات تراکم جریان بر روی مشعل پلاسما سه بعدی بدون انتقال کلاسیک
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی
In this study, the three-dimensional steady-state non-transferred plasma arc was investigated using computational fluid dynamics (CFD) with user defined functions (UDFs). A two-equation current density profile was developed to simulate the complex plasma flow inside the torch. The effect of the deviation distance (distance between the cathode tip center and the current density profile center) on the plasma flow features was systematically investigated for the first time. It is found that the temperature and velocity inside the plasma column reduce as the deviation distance increases, but the temperature near the arc-root attachment shows an increasing trend. Besides, it is also found that the arc length decreases with increasing the deviation distance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 114, 2 July 2015, Pages 163-171
نویسندگان
, , , , ,