Results obtained with flows generated over seven different wind tunnel floor-roughness configurations in the boundary layer wind tunnel at Clemson University cover a wide range of turbulence intensities.
Literature has shown a general trend that slip resistance performance improves with floor surface roughness.
This pilot study aimed to investigate slip resistance properties and identify functional levels of floor surface roughness for practical design applications in reducing the risk of slip and fall incidents.
A significant effect of floor type (surface roughness) on dynamic friction coefficient (DFC) was found in the soapsuds-covered wet condition.
The proposed model characterizes three important features of a realistic sea floor, including seabed roughness, sediment inhomogeneities, and basement shear property, therefore, provides a canonical environmental model for the study of seabed acoustics.
However, whether slip resistance properties are linearly correlated with surface topographies of the floors or what roughness levels are required for effective slip resistance performance still remain to be answered.
A theory model was proposed to characterize functional levels of surface roughness of floor surfaces by introducing a new concept of three distinctive zones.
In the attic Ms. Semo has placed her signature squares of spray-painted concrete and safety glass at regular intervals around the floor; her work echoes the roughness and gloominess of the space, which is dimly lighted and has patches of exposed insulation.
Under the soapsuds-covered wet condition, floors with 50 μm in Ra roughness scale seemed to represent an upper bound in the functional range of floor surface roughness for slip resistance because further increase of surface roughness provided no additional benefit.
On SEM evaluation for surface roughness of bracket slot floor, surface roughness for group D was found to be the smoothest of all the groups, while group B is less smooth, group C is rough, and group A was found to have a very rough surface.
The driving force for the oscillations is the periodic drill bit bouncing caused by impact of the roughness of the borehole floor.
