# What is the Physical Significance of Divergence? Gradient refers to the force that is applied to a physical substance from all directions. For example, if you have a ball in your hand and multiple arrows are thrown toward the ball that is perpendicular to the surface, the 3D image shows a perfect gradient of the ball. Moreover, you will also be able to get a clear view of the direction of arrows, applied force, the direction of force, and so much more. In the same way, the divergence of fluid shows the direction and force applied to the fluid, due to which changes happen on a regular basis.

To understand computational fluid dynamics in detail, you need to find out the ways by which divergence plays a significant role in determining fluid dynamics. The physical significance of divergence is fundamental when you take up vital concepts like fluid flow, change in divergence, change in vector flow, and so much more. Therefore, a better understanding of divergence is going to help you a lot to understand fluid dynamics and the ways by which it plays a significant role in physics and Engineering.

## What is the Application of Divergence?

Divergence is a physical property of a fluid that enables you to apply computational fluid dynamics in several areas of physical significance. If you take water running through a pipe and add numerous smaller pipes from all directions, you will understand divergence in a better way. As a matter of fact, the smaller pipes add to the water flow, increasing the force of water at the end. However, divergence can also be negative if the point of origin is the endpoint or a sink.

Several applications of divergence can help you to make specific changes according to fluid dynamics. If divergence is positive, it means that the final flow of water is more than the initial flow, and the point of origin is the source of water. On the other hand, if divergence is negative, it means that the final flow of water is less than the initial flow of water. The point of origin, in this case, becomes a sink or the end source. With the help of the physical significance of divergence, you will get to understand a lot about fluid dynamics in detail. Not only that, but you will also be able to make favorable changes according to the facts.

### Conclusion

The physical significance of divergence plays a significant role in computational fluid dynamics (CFD). It is one of the deciding factors when making crucial decisions or changes in the fluid flow structure. If you are able to understand divergence in detail, you will also have a better idea of the statistics of the initial and final flow of fluid. Therefore, you can easily make changes like increasing or decreasing the divergence to meet your requirements. For instance, if you want to increase the final flow of water, you need to increase the divergence so that the end result comes with positive outcomes. On the other hand, if you want to restrict the flow, you need to decrease divergence through the smaller pipes for better results. 