کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9690578 | 1457333 | 2005 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation of 3D acoustic receptivity of an airfoil boundary layer due to surface vibrations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Experimental investigation of 3D acoustic receptivity of an airfoil boundary layer due to surface vibrations Experimental investigation of 3D acoustic receptivity of an airfoil boundary layer due to surface vibrations](/preview/png/9690578.png)
چکیده انگلیسی
The receptivity was investigated in two general cases: in 'plus-regimes' when the TS-waves were excited at combination frequencies fTS+=fac+fv and in 'minus-regimes' when the excitation occurred at frequencies fTSâ=facâfv. The complex (amplitude and phase) receptivity coefficients are obtained experimentally as functions of the spanwise wavenumber (and the wave propagation angle) for three different frequency ratios K and also for several TS-wave frequencies at fixed values of K. The obtained vibro-acoustic receptivity coefficients are compared with the acoustic-roughness receptivity coefficients (i.e. for K=0) found in previous experiments and DNS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - B/Fluids - Volume 24, Issue 5, SeptemberâOctober 2005, Pages 621-641
Journal: European Journal of Mechanics - B/Fluids - Volume 24, Issue 5, SeptemberâOctober 2005, Pages 621-641
نویسندگان
A.V. Ivanov, W. Würz, S. Herr, S. Wagner, Y.S. Kachanov,