Groove parameters optimization of rotary excitation control valve using computational fluid dynamics coupled with response surface method

A rotary excitation control valve is proposed in this paper. In order to study the interaction of the valve core groove parameters on the output flow velocity and pressure of the rotary excitation control valve, a dynamic simulation of the internal flow field of the rotary excitation control valve is carried out based on the Multiple Reference Frame Model (MRF), and the simulation results are experimentally verified. Based on the quadratic regression orthogonal test method, a significant non-lossy regression model of the groove parameters with the output flow velocity and pressure is established, and the response surface of the groove parameter interaction is obtained. The results show that the influence of groove parameters on flow velocity is in the order of width > depth > length, and the interaction between length and depth is the most significant; the influence of groove parameters on pressure is in the order of width > depth > length, and the interaction between width and depth is the most significant. The Response Surface Methodology (RSM) is used to optimize the groove parameters, and the best combination of groove parameters obtained is 20.00 mm in length, 5.65 mm in width and 8.00 mm in depth.