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Stick/slip and polymer flow on rough surfaces

This is work due to Nikolai Priezjev and his group at Michigan State. The first study is of how fluid flow is affected by molecular-scale interactions at a solid-liquid interface. The solid surface is patterned with alternating stripes with no-shear and finite-slip attributes, a flow is induced in the liquid above the surface, and the dynamical structure of the fluid is observed. The second study is of short polymer chains flowing over a rough surface. The flow properties are a function of the corrugation wavelength and chain length.

Related publications

  • Rheological study of polymer flow past rough surfaces with slip boundary conditions, A. Niavarani and N. V. Priezjev, J. Chem. Phys. 129, 144902 (2008). doi:10.1063/1.2988496
  • Slip behavior in liquid films on surfaces of patterned wettability: Comparison between continuum and molecular dynamics simulations, N. V. Priezjev, A. A. Darhuber, and S. M. Troian, Phys. Rev. E 71, 041608 (2005). doi:10.1103/PhysRevE.71.041608