5. Conclusion

In this chapter, we have presented a three-dimensional numerical modeling technology for physical processes occurring in hydraulic brake devices. The technology is based on the numerical solution of a system of Reynolds-averaged Navier– Stokes equations. To track the free surface, we use the volume of fluid (VOF) method. Moving parts are simulated by means of moving deforming meshes. Numerical solution of the equations is based on the finite-volume discretization, which is used to model the counter-recoil phase in hydraulic brake operation. This technology enables simulations on three-dimensional unstructured meshes. The technology is implemented based on the program package LOGOS, which provides high parallel efficiency of simulations.

The technology has been used to model the counter-recoil phase in hydraulic brake operation. Results of studying the effect of the parameter related to friction, hydraulic brake angle, and initial fluid level are reported. Our numerical experiments have demonstrated that the initial fluid level in the counter-recoil chamber is the governing quantity in hydraulic brake operation. An increase in the fluid level in the counter-recoil chamber as a result of pouring more fluid or placing the hydraulic brake at a negative angle results in the same trend in the change in pressure and its maximums.

### Acknowledgements

This research has been funded by grants of the President of the Russian Federation for state support of research projects by young doctors of science (MD-4874.2018.9) and state support of the leading scientific schools of the Russian Federation (NSh-2685.2018.5), and supported financially by the Russian Foundation for Basic Research (project No. 16-01-00267).

#### Conflict of interest

The authors declare that they have no conflict of interest.

Technology of 3D Simulation of High-Speed Damping Processes in the Hydraulic Brake Device DOI: http://dx.doi.org/10.5772/intechopen.83358

### Author details

Valentin Efremov1 , Andrey Kozelkov<sup>2</sup> , Sergey Dmitriev<sup>3</sup> , Andrey Kurkin<sup>3</sup> \*, Vadim Kurulin2 and Dmitry Utkin2

1 Joint-Stock Company "Instrument Design Bureau named after Academician A.G. Shipunov", Tula, Russia

2 Russian Federal Nuclear Center—All-Russian Research Institute of Experimental Physics, Sarov, Russia

3 Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod, Russia

\*Address all correspondence to: aakurkin@gmail.com

© 2018 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, provided the original work is properly cited.
