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. 2016 Sep 12;6:33029. doi: 10.1038/srep33029

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Time-resolved flow velocimetry illustrates the progressive increase in fluctuations as the Wi is increased. Space-time diagrams show |v_x| along y = 0 (normalized by U) for flow of a 0.07 wt.% solution of PS16 in DOP under the following conditions: (a) , , , . (b) , , , . (c) , , , . (d) , , , . Movies M1,M2,M3–M4 in the Electronic Supplementary Information show full 2D, spatio-temporally-resolved velocity fields corresponding to Fig. 8a–d, respectively. (e–h) Power spectral density (PSD) of normalized velocity signals made at 10 Hz over a 30 s time period at location x = 1 mm, y = 0 mm under flow conditions corresponding to parts a–d, respectively. The PSD obtained for velocity signals from the DOP solvent at equivalent flow rates is also shown for comparison.

Inline graphic — Time-resolved flow velocimetry illustrates the progressive increase in fluctuations as the Wi is increased. Space-time diagrams show |v_x| along y = 0 (normalized by U) for flow of a 0.07 wt.% solution of PS16 in DOP under the following conditions: (a) , , , . (b) , , , . (c) , , , . (d) , , , . Movies M1,M2,M3–M4 in the Electronic Supplementary Information show full 2D, spatio-temporally-resolved velocity fields corresponding to Fig. 8a–d, respectively. (e–h) Power spectral density (PSD) of normalized velocity signals made at 10 Hz over a 30 s time period at location x = 1 mm, y = 0 mm under flow conditions corresponding to parts a–d, respectively. The PSD obtained for velocity signals from the DOP solvent at equivalent flow rates is also shown for comparison.