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Table 4 Comparison of the flow properties (minimum, mean and maximum values) as calculated by non Newtonian unsteady CFD simulations and Womersley’s solution

From: An in vitro test bench reproducing coronary blood flow signals

  Viscosity μ (Pa s) Flow rate Q (ml/min) WSS τ (Pa) WSSTD dτ/dt (Pa/s)
Womersley Womersley In vitro Womersley In vitro Womersley In vitro
Patient 1
 Min 3.42 × 10−3 85.2 118.2 −0.16 0.22 −22.01 −13.88
 Mean 3.42 × 10−3 197.8 198.4 0.73 0.74 0 0
 Max 3.42 × 10−3 306.5 298.8 1.50 1.50 37.14 25.95
Patient 2
 Min 3.09 × 10−3 177.7 219.6 −0.30 0.37 −64.40 −19.86
 Mean 3.09 × 10−3 310.4 310.9 1.14 1.15 0 0
 Max 3.09 × 10−3 421.5 395.7 2.16 1.88 75.13 36.09
Patient 3
 Min 3.85 × 10−3 186.7 187.1 0.33 0.42 −25.13 −14.05
 Mean 3.85 × 10−3 380.7 380.9 1.41 1.41 0 0
 Max 3.85 × 10−3 521.1 509.6 2.56 2.69 43.75 27.55
Patient 4
 Min 3.11 × 10−3 315.3 307.2 0.77 0.77 −21.09 −13.83
 Mean 3.11 × 10−3 508.6 508.4 1.88 1.88 0 0
 Max 3.11 × 10−3 709.9 674.5 3.27 3.09 45.28 32.04
Patient 5
 Min 3.69 × 10−3 280.6 305.2 0.13 0.71 −84.83 −13.16
 Mean 3.69 × 10−3 488.9 489.7 1.80 1.81 0 0
 Max 3.69 × 10−3 627.8 632.6 2.87 2.89 87.48 28.21