Parameters

Value

Reynolds number [Re = ρ *D *U_m/μ]

10,000

Dean number [De = Re *(R_c/D)^0.5]

7071

Fluid (water) temperature

25˚C ± 1˚C

Angular velocity of rotation pipe ω

0, 480 min⁻¹

Swirl number S

0, 1

Frequency of phased array transducer

2 MHz

Steering angle θ_s

0˚, −5˚, −10˚

Pulse repetition frequency f_prf

1 kHz

Number of repetition N_rep

256

Spatial resolution Δy

0.74 mm

Time resolution Δt [N_rep/f_prf]

0.256 s

Number of velocity profiles

10,000