theory of flow造句

Reason : I found the term " theory of Flow " online and was curious what it meant.
"Field based methods : These algorithms tend to compute fields for agents to follow, or generate navigation fields for different agents based on continuum theories of flows or fluid models.
Scientists at Institute had by then worked out a consistent theory of flow around an aircraft . This was, however, an approximation, using singularities to represent the vortices that generated lift, and Weber was tasked with improving it.
It's difficult to find theory of flow in a sentence. 用theory of flow造句挺难的