Enable Magnetohydrodynamics (MHD): Go to the `Models` tab and enable the MHD model. This option allows you to consider the interaction of magnetic fields with the fluid flow.
Define Magnetic Field Properties: Under the MHD model settings, specify the magnetic field properties.
Specify Electrical Conductivity: For MHD simulations, the electrical conductivity of the fluid is crucial. Define the electrical conductivity of the fluid in the material properties section.