Table 1. Experimental results.
Flow condition | Flow angle [degree] | 0 | 15 | 15 | 15 | 15 | 30 | 30 | 30 | 30 |
---|---|---|---|---|---|---|---|---|---|---|
Flow direction | Straight | Anterior | Left | Posterior | Right | Anterior | Left | Posterior | Right | |
Rotational velocity | Vrot,AsAo [cm/s] (N = 826) | 29.54 ± 14.73 | 21.36 ± 12.54* | 28.70 ± 26.07 | 53.45 ± 27.28* | 49.79 ± 24.54* | 28.61 ± 17.07† | 21.50 ± 19.46*,† | 62.34 ± 31.32*,† | 51.18 ± 29.69* |
Vrot,avg [cm/s] (N = 257,780) | 5.56 ± 10.74 | 4.03 ± 8.28* | 4.58 ± 10.67* | 8.85 ± 17.36* | 6.50 ± 15.67*,† | 5.87 ± 11.83*,† | 4.86 ± 10.26*,† | 11.19 ± 19.63*,† | 6.50 ± 15.67*,† | |
Impinging parameters | Impinging angle [degree] (N = 5) | 46.13 ± 1.41 | 32.89 ± 2.35 | 11.96 ± 1.88 | 20.43 ± 0.76 | 35.93 ± 0.46 | 12.02 ± 2.17 | 38.63 ± 1.20 | 28.08 ± 0.90 | 21.18 ± 1.18 |
Vjet,peak [cm/s] (N = 5) | 94.02 ± 2.51 | 101.52 ± 3.98 | 149.82 ± 2.64 | 153.22 ± 4.00 | 124.28 ± 3.65 | 154.86 ± 3.48 | 154.86 ± 4.17 | 156.08 ± 2.26 | 151.42 ± 6.10 | |
Vgoa,peak [cm/s] (N = 5) | 220.00 | 248.40 | 243.50 | 237.50 | 238.30 | 231.20 | 235.30 | 235.30 | 234.30 | |
Ajet [cm2] | 1.85 ± 0.05 | 1.80 ± 0.07 | 1.24 ± 0.02 | 1.21 ± 0.03 | 1.49 ± 0.04 | 1.27 ± 0.03 | 1.32 ± 0.04 | 1.20 ± 0.02 | 1.24 ± 0.05 | |
Agoa [cm2] | 0.79 | |||||||||
Q [L/min] | 8.10 | |||||||||
Pimp [mmHg] | 4.86 ± 0.22 | 2.85 ± 0.48 | 0.61 ± 0.19 | 1.74 ± 0.18 | 4.00 ± 0.05 | 0.61 ± 0.21 | 5.18 ± 0.20 | 3.19 ± 0.24 | 1.83 ± 0.27 | |
WSS | WSS 95% [Pa] (N = 4335) | 0.52 ± 0.10 | 0.77 ± 0.10* | 0.68 ± 0.22* | 0.83 ± 0.13* | 0.81 ± 0.11* | 0.81 ± 0.09*,† | 0.70 ± 0.23*,† | 1.04 ± 0.30*,† | 0.98 ± 0.09*,† |
WSS 5% [Pa] (N = 4335) | 0.003 ± 0.006 | 0.004 ± 0.007* | 0.005 ± 0.008* | 0.004 ± 0.008* | 0.003 ± 0.005* | −0.005 ± 0.006*,† | −0.004 ± 0.005*,† | 0.006 ± 0.009*,† | 0.006 ± 0.009*,† | |
WSSmax [Pa] | 0.86 | 1.07 | 1.48 | 1.20 | 1.08 | 1.18 | 1.52 | 2.06 | 1.45 | |
Energy parameters | TKE95% [mJ] (N = 12,889) | 115.93 ± 18.24 | 100.20 ± 19.89* | 105.02 ± 25.64* | 111.76 ± 23.67* | 115.77 ± 23.59 | 88.44 ± 22.54*,† | 89.34 ± 17.70*,† | 108.74 ± 25.79*,† | 95.40 ± 24.60*,† |
TKEmax [J/m3] | 228.28 | 265.08 | 244.30 | 217.02 | 199.98 | 258.25 | 233.44 | 229.47 | 254.80 | |
Total TKE [mJ] | 7.47 | 5.64 | 5.81 | 6.83 | 7.20 | 4.95 | 5.42 | 6.64 | 5.59 | |
Total MKE [mJ] | 14.72 | 16.05 | 16.39 | 22.73 | 19.08 | 16.21 | 14.80 | 26.38 | 19.18 | |
Total KE [mJ] | 22.19 | 21.69 | 20.20 | 29.56 | 26.28 | 21.16 | 20.22 | 33.02 | 24.76 |
Vrot,AsAo = rotational velocity at the ascending aorta; Vrot,avg = averaged rotational velocity in the thoracic aorta; Vjet,peak = peak velocity of the jet flow at the impinging region; Vgoa,peak = peak velocity of the jet flow at the exit of the aortic valve; Ajet = area of the jet at the impinging region; Agoa = area of the jet flow at the exit of the aortic valve; Q = flow rate; Pimp = estimated impinging pressure; N = number of elements.
*Statistically different (p < 0.01) in comparison with TKE in straight aortic valve flow.
†Statistically different (p < 0.01) in comparison with TKE in the same aortic flow direction, but at 15° of the aortic valve flow. Data indicates the mean ± SD.