Report
Fluid Acceleration in the Bulk Turbulence of Dilute Polymer Solutions
| العنوان: | Fluid Acceleration in the Bulk Turbulence of Dilute Polymer Solutions |
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| المؤلفون: | Crawford, Alice M., Mordant, Nicolas, Xu, Haitao, Bodenschatz, Eberhard |
| سنة النشر: | 2008 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Fluid Dynamics |
| الوصف: | We report experimental measurements of Lagrangian accelerations in the bulk of intense turbulent flows of dilute polymer solutions by following tracer particles with a high-speed optical tracking system. We observed a significant decrease in the acceleration variance in dilute polymer solutions. The shape of the normalized acceleration probability density functions, however, remain the same as in Newtonian water flows. We also observed an increase in the turbulent Lagrangian acceleration autocorrelation time in these dilute polymer solutions. Comment: 5 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/10/12/123015 |
| URL الوصول: | http://arxiv.org/abs/0801.1695 |
| رقم الانضمام: | edsarx.0801.1695 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/10/12/123015 |
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