Modeling and Simulation of the Magnetorheological Fluid Sleeve Valve

Magnetorheological fluids contain suspended magnetic particles that arrange in chains in the presence of a magnetic field, causing the conversion of the fluid from a liquid state to a quasi-solid state. these fluids can be used in valves as a tool for pressure drop and flow interruption. this research aims to investigate the feasibility of using the magnetorheological fluid (mrf) in industrial valves. the rheological properties of the mrf sample were measured with the mcr300 rheometer in the presence of a magnetic field. in this connection, the bingham plastic continuous model was used to predict the fluid behavior, and the model coefficients were obtained using matlab software. then, the model coefficients were used to simulate the behavior of the magnetorheological fluid in the presence of the magnetic field in the valve. the geometry and dimensions of the valve were designed according to the dimensions of industrial samples. then the cfd simulation with fluent software was done by using the bingham model and fluid characteristics obtained from experimental results. the results showed that the pressure increased by increasing the magnetic field at the center of the sleeve. the magnetic field of up to 0.5 tesla, increases pressure and decreases amplitude. therefore, as the magnetic field increased, the amplitude of the maximum pressure on the sleeve was significantly reduced.