access icon openaccess Numerical–experimental research on the influence of inclined angle on the flow characteristics of angle seat valve

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Received 02/10/2018, Accepted 12/10/2018, Published 22/10/2018

The influence of inclined angle on the flow characteristics of angle seat valve is investigated by the numerical and experimental study. The accuracy of numerical modelling and calculation is verified by comparing the flow coefficients obtained from numerical simulation and experiments under the different pressure difference at the inclined angle of 45° and 60°. The experiment results showed that the highest flow velocity, the maximum flow coefficient, and the minimum flow resistance exist as the inclined angle is 45°. The flow coefficient increases as the increase of inclined angle when it ranges from 45° to 60°, and the flow resistance decreases correspondingly. The observed result is discussed and explained by the computational fluid dynamics (CFD) method. The calculation results indicated that the flow coefficient mainly depends on the maximum flow velocity in the angle seat valve. Moreover, the flow capacity is also affected by the flow direction near the sealing surface, and the number, locations and intensities of flow vortex.

Inspec keywords: computational fluid dynamics; numerical analysis; vortices; valves; flow simulation

Other keywords: CFD; numerical simulation; inclined angle; flow vortex intensities; flow coefficients; flow capacity; computational fluid dynamics; flow velocity; angle seat valve; flow resistance

Subjects: Numerical analysis; Fluid mechanics and aerodynamics (mechanical engineering); General fluid dynamics theory, simulation and other computational methods; Rotational flow, vortices, buoyancy and other flows involving body forces; Mechanical components; Applied fluid mechanics; Numerical approximation and analysis

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