Based on numerical simulation, the flow characteristics of the valve under different opening degrees of sandy conditions are studied based on the Realizable k-ε turbulence model and Eulerian multiphase flow model, and the flow characteristic curves and flow coefficient-opening degree curves of the valve are obtained, and the influence of the sand rate on the valve flow is analyzed with the numerical calculation results. The results show that with the increase of sand content rate and valve opening, sediment deposition is easily formed in the throttle orifice area, which affects the normal flow inside the valve body and leads to a large deviation of the valve flow rate from the theoretical flow rate. In addition, the relationship between flow rate, sand content and flow coefficient is obtained by fitting the data to the numerical calculation results. The research results have certain reference value for the structural optimization and efficient operation of the valve.
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Fu et al. (2024) studied this question.
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