BY : CHAM Consultancy Team

The incompressible, single-phase flow of water through a fully-open axi-symmetric ball valve is solved. The pipe-work considered is 2 m in length; the radius at inlet is 0.15 m; the diminishes to a minimum of 0.09 m in front of the ball; and the maximum radius is 0.16 m.
A plug profile of axial velocity is prescribed at the inlet, and a fixed-pressure condition is employed at outlet. Wall friction is activated along the boundary of the ball, and along the pipe wall. A fixed turbulent kinematic viscosity is set to 100 times the laminar value.
Particles of different sizes and velocities are introduced at the valve inlet with several initial velocities.

Pictures are as follows :

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