An example of a fluid flow is a river flowing down a mountain.
According to provided information, fluid flow is a common phenomenon observed in various scenarios. The following are all examples of fluid flow:
- A river flowing down a mountain.
- Air passing over a bird's wing.
- Blood moving through a circulatory system.
- Fuel moving through an engine.
These examples illustrate how fluids (liquids and gases) move under different conditions and forces. Whether it's a natural occurrence like a river's descent or a biological process such as blood circulation, fluid flow is a ubiquitous aspect of our world.