Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method

Table 1

Specifications of CFD analysis.

Viscous model	SST κ-ω
Wall function	Use
Time	Steady
Pressure-velocity coupling scheme	SIMPLE
Spatial discretization
Gradient	Least squares cell-based
Pressure	PRESTO!
Momentum	Second-order upwind
Turbulent kinetic energy	Second-order upwind
Specific dissipation rate	Second-order upwind
Mesh type	Polyhedra
Average mesh size	0.0254D
Number of mesh	2 × 10^6
CPU	Intel Xeon 3.2 GHz
Number of cores	3
Number of iterations	3000
Calculation time per case	7 h