Flow visualization is all about seeing how things move. Imagine you're looking at a river with a bunch of leaves in it. If you stare at the water for a while, you can see how the leaves are moving with the river's flow.
In science, people want to see how other things move like air, water, or even particles. But since we can't always see these things with our naked eyes, we need to use special tools like dyes or smoke to make the movement visible.
Scientists can add dye to a water flow or spray paint tiny particles into the air to study how the flow moves them around. Then they might use a camera or microscope to take pictures of how the dye or particles moved.
Flow visualization can help us better understand how things move, which is very important in areas like aerodynamics, weather research, and even medicine. It's like capturing a moment in motion and learning from it to make things better in the future.