https://doi.org/10.1140/epjp/s13360-024-05547-8
Regular Article
Numerical analysis of erosion characteristics of three eccentric butterfly valves based on CFD
1
College of Mechanical and Electrical Engineering, Wenzhou University, 325035, Wenzhou, China
2
Institute of Mechatronics, Wenzhou University, 325035, Wenzhou, China
Received:
3
May
2024
Accepted:
7
August
2024
Published online:
29
August
2024
Triple eccentric butterfly valve plays a key role in circulating water filtration system of nuclear power plant. Frequent changes in the opening of the butterfly valve result in alterations in the distribution of solid–liquid two-phase flow, causing particles in the flow to impact the surface of the valve due to the fluid's driving force, resulting in varying levels of erosion and wear on the valve body and pipeline. This study examines the erosion and wear characteristics of three eccentric butterfly valves and flow behavior by analyzing erosion patterns with three different particle sizes, mass flow rates, velocities, and nine opening angles. Numerical analysis shows that the flow field’s highest velocity decreases as the opening angle increases, with a 1184% increase in maximum speed at 10° compared to the inlet velocity, and only a 60.2% increase at 90°compared to the inlet velocity. Wear is more pronounced at smaller openings, shifting the maximum erosion rate towards the left as the valve opens until it reaches the vicinity of centerline. For an inlet velocity of 4 m/s, the surface erosion rate initially rises and then falls with increasing particle size, peaking at 300 um. Similarly, the wall erosion area expands and contracts with the opening angle, reaching a maximum at 60º, which is 307.69% of the minimum erosion range.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
