Studying the effect of the size of the flow divider holes of axisymmetric control valves on the flow hydrodynamics
Abstract
Studying the effect of the size of the flow divider holes of axisymmetric control valves on the flow hydrodynamics
Incoming article date: 11.10.2025The article presents numerical modeling of flow dividers (separators) with different hole diameters (3.5 mm, 7.0 mm, 14.0 mm) to prevent cavitation damage. The hole diameters, number, and rows in the separators have equivalent significance, as they determine the distribution of local velocities and pressures in the flow. This minimizes the risk of vapor bubble formation and subsequent collapse, which can lead to erosion of metal surfaces. For clarity, the simulation results are presented in the form of pictures of the distribution of pressure and velocities in each of the separators with different diameters. In order to prevent cavitation, the authors have presented a design of a "short-stroke" valve in which it is allowed to use flow dividers with enlarged holes.
Keywords: valve, cavitation, distribution pattern, separator, holes, rotation, simulation, flow divider