The Wear and Drag Prediction of the 2D Micro-Asperities on Textured Wall

Abstract

This study presents a numerical simulation, using the flow simulation of solidworks 2010; the results showed the flow speed trajectory, the variation of the shear stress and the flow pressure on different faces of the micro-asperities in relation with the face length. The simulation was done in steady state and with the no- slips condition in contact with the upper surface. The flow characteristics were found also with different flow speed. The turbulence area due to the micro-asperity geometry is localized. The flow characteristics (variation of shear stress and flow pressure) are analyzed for the prediction of the maximum wear area due to the skin friction or drag.

Influences of the Textured Surface Micro-Texture Depth on the Friction Coefficient

“…Predictions of the friction coefficient and the wear depth, which were obtained from a Global Incremental Wear Model "GIWM", are in good agreement with experiments and successfully validate the transferability of the model [3]. A numerical simulation was done with different fluid speeds to determine the flow characteristics (shear stress, pressure) on different faces of micro-asperities [4]; a theoretical method was also used to find the approximated micro-asperities dimensions [5].…”