What is the flow of a liquid called?

The movement of liquids and gases is generally referred to as “flow,” a concept that describes how fluids behave and how they interact with their surrounding environment — for example, water moving through a channel or pipe, or over a surface. Flow can be either steady or unsteady.

What is the fluid substance?

Fluids is a substance that cannot resist a shear force or stress without moving as can a solid. It is usually classified as liquids or gases. A liquid has intermolecular forces that hold it together so that it possesses volume but no definite shape.

What causes liquids to flow?

Liquids flow because the intermolecular forces between molecules are weak enough to allow the molecules to move around relative to one another. Intermolecular forces are the forces between neighboring molecules. First, liquids share the ability to flow with gases.

How do you describe a gaseous substance?

Gases are substances that exist in the gaseous phase. Gases do not have any defined volume. They expand to occupy the volume of the container they are placed in. Gases do not have any defined shape.

Why do gases flow?

The molecules of gases and liquids are present far apart from each other. In other words, they have more gaps or intermolecular spaces. Due to the large intermolecular forces, the intermolecular attractions are very less and thus liquids and gases can flow.

What are the types of flow?

The Different Types of Flow

	Physiological occurrence	Flow direction
Oscillatory laminar flow	Accepted as a means of turbulence simulation using flow chambers	Periodically changing
Turbulent flow	Rare, during pathophysiological processes	Changing

Why gas and liquids can flow?

What is called diffusion?

diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. D is called the diffusivity and governs the rate of diffusion.