Modeling the working media flow in shut-off valves with displacement of the regulating body perpendicular to the flow axis
2021 ◽
Vol 2057
(1)
◽
pp. 012017
Keyword(s):
Gas Flow
◽
Abstract The mathematical model of the working fluid movement in the flow section of the wedge type two-disc parallel gate valve is developed. The simulation of the fluid flow through the valve cavity is carried out, as a result the flow parameters are obtained in a wide range of Reynolds numbers at the entrance to the calculated area. The dependence of the hydraulic resistance as a function of the Reynolds number for liquid and gas flow is calculated. The various positions of the shut-off body in the flow part of the valve are considered and the area of reduced pressures in which the effect of cavitation may occur during fluid flow is estimated.