CFD VALIDATION
63+ CFD Cases: Bore-Venturi Flow Meter Validation
A structured numerical study tests discharge-coefficient behavior across geometry and Reynolds-number changes.
DISCHARGE COEFFICIENT
Cd follows the expected physical hierarchy
The Bore-Venturi result sits above sharp-edged and conventional balanced plates, while remaining below the strong pressure recovery of a classical Venturi tube.
Orifice < Balanced < Bore-Venturi < Classical Venturi
VALIDATION DATA
Coefficient behavior at a glance
Cd vs. Reynolds number
Representative coefficient trends on a logarithmic Reynolds scale
Cd range comparison
Typical discharge-coefficient bands by primary element
PHYSICAL VALIDITY
Numerical results must remain physically credible
The k-ω SST model resolves adverse-pressure-gradient and near-wall behavior relevant to separation and diffuser recovery. Cases spanning Reynolds numbers from 2,000 to 1,000,000 test both transitional sensitivity and high-Reynolds-number stability across the evaluated beta values.
Validation checks
- Mass-flow balance between inlet and outlet
- Converged pressure-drop and discharge-coefficient monitors
- Mesh refinement around throats, edges and recovery regions
- Cd trends checked against established primary-element behavior
- ⚠ Preliminary results: residual convergence and mesh sensitivity studies are ongoing; final Cd values are subject to revision pending complete convergence and physical calibration
CFD supports design validation; final guaranteed accuracy remains subject to controlled calibration and the stated installation conditions.
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