We investigated the role of global optic flow for visual-motor adaptation of walking direction. In an immersive virtual environment, observers walked to a circular target lying on either a homogeneous ground plane (target-motion condition) or a textured ground plane (ground-flow condition). During adaptation trials, we changed the mapping from physical to visual space to create a conflict betwe...

The accurate prediction of turbulent flows separating from curved and otherwise continuous surfaces is one of the most difficult tasks for any computational framework. Among several difficulties, two major ones are the unsteady, spatially varying separation region – usually involving patches of alternately separated and attached flow and the need to resolve accurately the very thin near-wall la...

Mathematical models and numerical simulations for thin-film flows of a fluid have important applications in industrial and natural processes [12], [10], [13], [14], [3], [4], [6]. Herein, we consider the slow motion of a thin liquid layer of an incompressible, Newtonian fluid over an arbitrary solid, stationary curved substrate. In a three dimensional and very slow lubrication flow, a model for...

We measure the velocities of the mean flows that are driven by curved rolls in a pattern formation system. Curved rolls in Faraday waves are generated in experimental cells consisting of channels with varying widths. The mean flow magnitudes are found to scale linearly with roll curvatures and squares of wave amplitudes, agreeing with the prediction from the analysis of phase dynamics expansion...

The structural and elastic properties of strongly curved cylindrical interface are characterised by spontaneous curvature, spontaneous area per molecule and three elastic moduli corrcsponding respectively to area extension, bending and mixed deformation of

A direct numerical simulation (DNS) of a channel flow with one curved surface was performed at moderate Reynolds number (Reτ = 395 at the inlet). The adverse pressure gradient was obtained by a wall curvature through a mathematical mapping from physical coordinates to Cartesian ones. The code, using spectral spanwise and normal discretization, combines the advantage of a good accuracy with a fa...