• Laminar film flow down a wavy incline 

      Bontozoglou, V.; Papapolymerou, G. (1997)
      Laminar how of a liquid, down an inclined wall with sinusoidal corrugations, is considered. A linear analysis, valid for small-amplitude disturbances but arbitrary wavelength and Re number, leads to an Orr-Sommerfeld type ...
    • Linear resonance in viscous films on inclined wavy planes 

      Wierschem, A.; Bontozoglou, V.; Heining, C.; Uecker, H.; Aksel, N. (2008)
      We study viscous gravity-driven films flowing over periodically undulated substrates. Linear analysis describes steady flow along small amplitude corrugations for films of arbitrary thickness. Solving the resulting system ...
    • Nonlinear resonance in viscous films on inclined wavy planes 

      Heining, C.; Bontozoglou, V.; Aksel, N.; Wierschem, A. (2009)
      We study nonlinear resonance in viscous gravity-driven films flowing over undulated substrates. Numerical solution of the full, steady Navier-Stokes equations is used to follow the emergence of the first few free-surface ...
    • Steady solutions of inertial film flow along strongly undulated substrates 

      Nguyen, P. K.; Bontozoglou, V. (2011)
      Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling ...
    • Wall-triggered interfacial resonance in laminar gas-liquid flow 

      Bontozoglou, V.; Papapolymerou, G. (1998)
      Laminar gas-liquid flow through a channel with corrugated bottom, driven by a combination of gravity and pressure drop, is considered. A linear analysis, valid for small-amplitude disturbances but arbitrary wavelength and ...