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. 2016 Jul 5;10(4):043508. doi: 10.1063/1.4954814

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© 2016 Author(s).

1932-1058/2016/10(4)/043508/20

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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FIG. 8. — (a) Comparison of the channel boundaries obtained from 3D optimisations for creeping flow conditions for AR = 1, 2, 4, and 8 and the ideal hyperbolic shape when l_c = 2w_u, l_ε = w_u, and CR = 8. (b)–(e) Corresponding contour-plots of the normalised streamwise velocity for each optimised geometry.