**8. Conclusions**

This numerical study presents the evolution of the fluid flow for turbulent regime in hydrodynamic plain bearings with a non-textured and textured surface, in order to improve the hydrodynamic lubrication and tribological performance of plain bearing, using the finite volume method, such as pressure, friction torque and fluid flow velocity.

The results obtained for the textured plain bearing were compared to the nontextured plain bearing, the main conclusions drawn from this study are:


4.The flow velocity of the fluid in the plain bearing takes a maximum value at the angular position of 165°. The difference between the flow velocity for a non-textured and textured plain bearing is estimated of 38%.

It should be emphasized, however, that the conclusions we give here are only valid for the cases we have studied, and that they are not independent of the characteristics of the plain bearing and of the lubricant.

The numerical results show that the most significant hydrodynamic characteristics such as pressure, flow velocity of the fluid and friction torque, are significant for the textured plain bearing under rotational velocity of 21,000 rpm and radial load 10,000 N compared to the results obtained for a non-textured plain bearing.

When one is interested in plain bearings operating under severe conditions, that is to say for the turbulent regime, the hydrodynamic pressures sometimes reach several hundred mega Pascal's.

**Author details**

**41**

Bendaoud Nadia\* and Mehala Kadda

Oran Mohamed Boudiaf, Oran, Algeria

provided the original work is properly cited.

\*Address all correspondence to: nadiamehala@yahoo.fr

Faculty of Mechanical Engineering, University of the Sciences and Technology of

*Turbulent Flow Fluid in the Hydrodynamic Plain Bearing to a Non-Textured…*

*DOI: http://dx.doi.org/10.5772/intechopen.94235*

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,
