کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
735784 | 893659 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new technique for fluid velocimetry based on near field scattering
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A new technique for fluid velocimetry based on near field scattering A new technique for fluid velocimetry based on near field scattering](/preview/png/735784.png)
چکیده انگلیسی
We show that the time evolution of near-field scattering speckles, originated by a fluid suspension of particles, provides information about the velocity field in the fluid. This information can be extracted from a statistical analysis of speckle fields taken at different times, either by measuring their cross-correlation function or by recovering the power spectrum corresponding to the difference between the two speckle fields. Experimental data are in accordance to the expected behaviors. The results are independent of the scatterer's size, allowing one to exploit the technique also with sub-wavelength tracking particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 44, Issue 7, July 2006, Pages 722–731
Journal: Optics and Lasers in Engineering - Volume 44, Issue 7, July 2006, Pages 722–731
نویسندگان
M.A.C. Potenza, M.D. Alaimo, D. Pescini, D. Magatti, F. Ferri, M. Giglio,