Lab · Fluid Mechanics
Flow Measurement Lab
Three instruments, one shared fluid. A Venturi reads a differential across a contraction, a Pitot reads a stagnation difference at a point, and an orifice discharges under a head. They are compared side by side, but never merged: each keeps its own equation and its own assumptions.
The fluid and the device
Shared by every principle on this bench.
Device inputs
Device schematic — Venturi meter
- Steady, incompressible flow between the upstream section and the throat.
- Continuity A1V1 = A2V2 with the stated areas; elevations are included explicitly.
- The discharge coefficient is prescribed, not predicted.