کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8961249 | 1646477 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical investigation of the effect of dual frequency sonication on stable bubble dynamics
ترجمه فارسی عنوان
بررسی عددی اثر سونیکس فرکانس دوگانه در دینامیک حباب پایدار
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کلمات کلیدی
کاویتیشن آکوستیک، نوسانات پایدار، فرکانس دوگانه، دینامیک، سقوط - فروپاشی، درجه حرارت،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
چکیده انگلیسی
A computational study aiming to simulate an oxygen single acoustic bubble oscillation under a dual-frequency sonication was presented in this paper. The non-linear response of the bubble to the superposition of two fields of ultrasonic waves was investigated through dynamics parameters, collapse ratios and average velocities. The main goal of this analyze is to link the properties of the wave resulting from the dual-frequency excitation to the dynamics behavior of the bubble. The obtained results prove that, in contrast with the mono-frequency, coupling a wave to lower frequencies enhances the collapse duration and raises the compression ratio in the case of 35â¯kHz, while associating any of the studied waves to a higher frequency elevates the number of bubble oscillations during a time interval as compared to mono-frequency. The total sonochemical production has been investigated in accordance with the dynamics results, as well as the proportions of the three predominant free radicals, that show a dependency on the value of the basic frequency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 49, December 2018, Pages 325-332
Journal: Ultrasonics Sonochemistry - Volume 49, December 2018, Pages 325-332
نویسندگان
Kaouther Kerboua, Oualid Hamdaoui,