Fluiddynamics with Magnetic Fields

Hello,
I have few questions about the modules.
First the explanation of my problem.
I have fludic magnetic metal and this metal flows through magnetic field.
To simulate this I wanted to combine the CFD Module and Magnetic Fields physics, but I am unsure how to do this.
I am very new to COMSOL though.
The ambition is to see the Lorentz Force in the metal, induced from the field.
I have already computed the field, and I've attached a 2D screenshot of it.
I hope you can help me out.
Greetings, Mikhail