If you have a problem with some kind of flow, be it concrete or abstract, discrete or continuous, you have an problem where the dynamic flow simulation can help you. The classic applications are:

People flow

for problems like hospitals, call-centers, airports, emergency evacuation etc.

Logistic flow

for problems like shipping, warehouses, distribution centers etc.

Production flow

for problems like manufacturing (milling, injection, surface treatment, etc.), assembling and quality control in nearly any industry

Liquid flow

for problems in the chemical sector, pharmaceutical sector or even for refinery

Abstract objects flow

for problems dealing with information, data or even flow of money