کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1659050 1008367 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of the unsteadiness of a plasma jet and the related turbulence
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Analysis of the unsteadiness of a plasma jet and the related turbulence
چکیده انگلیسی

Plasma spraying using liquid feedstock allows realizing thin coatings (< 100 μm). In this process, the plasma jet fluctuations play an important role in the behavior of the liquid fragmentation and then in the final deposit characteristics. In this study, numerical simulations of two different plasma jets (argon or argon hydrogen mixture) issuing into air are investigated. The computations are based on a compressible model and a Large Eddy Simulation (LES) modeling for the turbulence. The aim of this work is to analyze the unsteady effects of the plasma jet regarding those of turbulence. In particular, the characterization of the turbulent zone inside the plasma jet is provided. A turbulence analysis is carried out in order to estimate the levels of turbulence and modeling effects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 205, Issue 4, 15 November 2010, Pages 1165–1170
نویسندگان
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