Lubrication Characteristics of Surface Textured Hydraulic Machine Components

Unsaturated Hydraulic Conductivity of Fractal-Textured Soils

Laser Textured Surfaces for Mixed Lubrication: Influence of Aspect Ratio, Textured Area and Dimple Arrangement

Unidirectional sliding experiments with polished and laser textured steel surfaces were carried out to investigate the effects of different textured area densities, aspect ratios and dimple arrangements. The system was lubricated with Polyalphaolefin (PAO) at 100 °C and the contact pressure was 3 MPa. For measuring Stribeck curves, the sliding speed was controlled between 40 and 2000 mm/s. The ...

3D Textured Surface Modeling

Because object geometry varies at many scales, it is often convenient to distinguish shape from texture. While shape is a deterministic macroscopic description, texture is a finer scale geometric description with some repetitive or random component. The distinction between texture and shape is important when developing object recognition systems. Acquiring fine scale geometry is difficult due t...

Characteristics of Hydraulic Jump

The effect of an abruptly expanding channel on the main characteristics of hydraulic jump is considered experimentally. The present study was made for supercritical flow of Froude number varying between 2 to 9 and approach to expanded channel width ratios 0.4, 0.5, 0.6 and 0.8. Physical explanations of the variation of these characteristics under varying flow conditions are discussed based on t...

Determination of Surface and Thickness Characteristics of Textured Geomembranes Using Image Analysis

Image analysis was used to determine surface topography and thickness of textured geomembranes. Images of cross sections (specimen length x thickness) of geomembranes were obtained at 50x magnification using a digital optical microscope. Thickness was determined as the distance between the top and bottom surfaces along an entire cross section. For surface analysis, profiles of top and bottom su...