کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7152788 | 1462429 | 2014 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical analysis and passive control of a car side window buffeting noise based on Scale-Adaptive Simulation
ترجمه فارسی عنوان
تجزیه و تحلیل عددی و کنترل غیرفعال سر و صدای باطری ماشین با استفاده از شبیه سازی مقیاس پذیر
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کلمات کلیدی
مقیاس پذیری شبیه سازی، حفره، سر و صدای بالون سمت پنجره، مکانیسم، مشخصات، کنترل منفعل،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Flow over an open side window in a car exhibits similar characteristics as the flow over an open cavity. Computational Fluid Dynamics (CFD) simulation over a cavity was done as a benchmark. The unsteady flow simulation was carried out using Scale Adaptive Simulation (SAS) turbulence model. The benchmark results, frequency and sound pressure levels of feedback and resonance modes, all well matched with the experimental data. Then, with the right rear window, for example, the mechanism of the side window buffeting was investigated. The simulation results show that side window buffeting noise is generated by large scale vortices and in low frequency. Furthermore, buffeting noise characteristics under several patterns of side windows opening were also numerically investigated. As a result, rear window buffeting noise is more severe than that of front window when one window open, and combination pattern of side windows open can reduce buffeting noise. To decrease the interior noise and improve car ride comfort, four suppression measures through adding a side window weather deflector at the A-pillars, constructing a cavity at the B-pillars, combination of the front and rear windows and installing a row of square cylinder deflector at the B-pillars were also studied, respectively. In conclusion, certain noise reduction can be achieved through four passive control methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Acoustics - Volume 79, May 2014, Pages 23-34
Journal: Applied Acoustics - Volume 79, May 2014, Pages 23-34
نویسندگان
Yang Zhendong, Gu Zhengqi, Tu Jiyuan, Dong Guangping, Wang Yiping,