Classical fluid

A classical fluid is like a group of tiny balls that move around and bump into each other. These tiny balls are called molecules. Imagine a bunch of marbles in a jar. When you shake the jar, the marbles move around and hit each other. That's what the molecules in a fluid do.

Classical fluids can be different things like water, oil, or even air. When we pour a glass of water, the water molecules are moving and bumping into each other, and this is what makes the water flow.

In a classical fluid, the molecules are always moving, and they can move in different ways. They can move in a straight line or in a zigzag pattern. When the molecules move faster, the fluid becomes hotter. And when the molecules move slower, the fluid gets colder.

Scientists study classical fluids to understand how different fluids behave and how we can use them for different things like making cars run or cooling down a computer.