We report Particle Image Velocimetry of the Large Scale Circulation and the viscous boundary layer in turbulent thermal convection. We use two parallelepipedic Rayleigh-Bénard cells with a top smooth plate. The first one has a rough bottom plate and the second one has a smooth one so we compare the rough-smooth and the smooth-smooth configurations. The dimensions of the cell allow to consider a...

Through multiscale simulations, we explore the influence of both smooth and atomically rough indenter tips on the nucleation of dislocations during nanoindentation of single-crystal aluminum. We model the long-range strain with finite element analysis using anisotropic linear elasticity. We then model a region near the indenter atomistically and perform molecular dynamics with an embedded atom ...

Detecting the taste components within a flavoured substance relies on exposing chemoreceptors within the mouth to the chemical components of ingested food. In our paper, we show that the evaluation of taste components can also be influenced by the tactile quality of the food. We first discuss how multisensory factors might influence taste, flavour and smell for both typical and atypical (synaes...

In turbulent Taylor-Couette flow, the injection of bubbles reduces the overall drag. On the other hand, rough walls enhance the overall drag. In this work, we inject bubbles into turbulent Taylor-Couette flow with rough walls (with a Reynolds number up to 4 x 10(5), finding an enhancement of the dimensionless drag as compared to the case without bubbles. The dimensional drag is unchanged. As in...

Detecting the taste components within a flavoured substance relies on exposing chemoreceptors within the mouth to the chemical components of ingested food. In our paper, we show that the evaluation of taste components can also be influenced by the tactile quality of the food. We first discuss how multisensory factors might influence taste, flavour and smell for both typical and atypical (synaes...

Liquid-infused surfaces (LIS) are a promising technique for reducing friction, fouling and icing in both laminar turbulent flows. Previous work has demonstrated that these susceptible to shear-driven drainage. Here, we report different failure mode using direct numerical simulations of channel flow with liquid-infused longitudinal grooves. When the liquid-liquid surface tension is small and/or ...

An investigation was designed to determine whether or not the required smoothness has been reached. This is still a controversial subject among clinicians. Ten cylindrical metal samples of equal sizes with various degrees of smoothness were prepared, and their degrees of smoothness were assessed in a blind manner by 14 periodontists, who were asked to group them as smooth or rough using a perio...

The effect of surface roughness on corrosion behaviour carbon steel under intermittent oil/water wetting with different flow conditions was investigated by an “alternate cell”, combining potentiostatic polarisation, contact angle measurement, and computational fluidic dynamics (CFD) analysis. Under static conditions, the rough increased oil film lifetime consequently mitigated as has good adhes...

Little is known about the disease-causing genetic determinants that are used by Mycobacterium abscessus, increasingly acknowledged as an important emerging pathogen, notably in cystic fibrosis. The presence or absence of surface exposed glycopeptidolipids (GPL) conditions the smooth (S) or rough (R) M. abscessus subsp. abscessus (M. abscessus) variants, respectively, which are characterized by ...