Image shows how a cancer cell flows over the white blood cell without any bond interactions or deformation. Solid walls (including the cells) are colored by flow velocity and the lines are velocity contours. 
 
Image courtesy of Meghan Hoskins, a Ph.D. candidate in the Bioengineering program at Penn State. Click this link for the full story on how "Cutting-edge CFD Simulations Take Cancer Research to a New Dimension".

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