Hey,

So I wanted to visualise a field in maya, as I needed to know what it was looking like, and I found a pretty simple way to do it.

Create a 3D fluid container:
Dynamics > Fluid Effects > Create 3D Container

Connect your field to the container:
Window > Relationship Editors > Dynamic Relationships

In the fluid container, turn on velocity draw:
Display > Velocity Draw

Feel free to change the options, increase the resolution of the container if you need more fidelity.

Enjoy.

Gary