acyclic potential flow的用法和样例：
- Pipe flowmeter is a very potential flow metering equipment.
- The potential flow theory is then applied to the overlap of the slipstream and the flow over the wing.
- The second part is about the airfoil analysis and design of two-dimensional inviscid incompressible potential flow.
- Making use of these results, we obtained an exact solution for the incompressible potential flow through a two-dimensional Laval nozzle.