I'm simulating a high-pressure water flow system in SolidWorks Flow Simulation. The inlet pressure is 15,000 psi and the outlet is atmospheric (~14.5 psi). I noticed that when I increase the outlet area, the fluid velocity at the outlet increases—which seems counterintuitive based on the continuity equation for incompressible flow.

Can someone explain why this happens? Is this due to decreased backpressure allowing greater mass flow rate? How do pressure-driven flows behave in this contex#CFD