Table 1.

Mean values ± standard deviation of 20 in vitro Doppler flow measurements of the average peak velocity at each perfusion speed in glass pipes of 1.5 – 5.5 mm. The perfusion speed was adjusted up to 700 ml/min (2.5 – 5.5 mm diameter) and up to 200 ml/min in pipes of 1.5 mm diameter. The flow velocity was calculated of the blood flow (Perf.) and the luminal area of the pipe. The velocity value at the critical Reynolds number () is marked for each diameter.

Diameter:	1.5 mm			2.5 mm			3.5 mm			4.5 mm			5.5 mm
Velocity of CRN	125.8 cm/s			75.5 cm/s			53.9 cm/s			41.9 cm/s			34.3 cm/s
Perf. (ml/min)	Velocity (cm/s)	APV		Velocity (cm/s)	APV		Velocity (cm/s)	APV		Velocity (cm/s)	APV		Velocity (cm/s)	APV
		Mean	± SD		Mean	± SD		Mean	± SD		Mean	± SD		Mean	± SD
50	47.2	94.7	± 1.23	17.0	35.7	± 0.65	8.7	17.4	± 0.48	5.2	11.4	± 0.48	3.5	7.1	± 0.08
100	94.3	183.7	± 1.56	34.0	68.0	± 0.63	17.3	34.1	± 0.97	10.5	21.6	± 0.73	7.0	14.0	± 0.0
150	141.5	259.6	± 3.88	50.9	97.0	± 1.52	26.0	51.6	± 0.73	15.7	32.6	± 0.66	10.5	20.7	± 0.57
200	188.6	328.9	± 7.56	67.9	120.5	± 2.38	34.7	67.1	± 0.67	21.0	42.3	± 0.71	14.0	27.2	± 0.51
250				84.9	145.2	± 3.79	43.3	82.1	± 0.77	26.2	51.7	± 0.78	17.5	33.5	± 0.87
300				101.9	169.6	± 5.28	52.0	96.5	± 0.97	31.4	62.3	± 0.78	21.1	39.1	± 1.56
350				118.8	195.3	± 6.91	60.6	110.5	± 0.80	36.7	70.9	± 0.73	24.6	44.5	± 2.36
400				135.8	220.8	± 8.29	69.3	124.3	± 1.61	41.9	82.3	± 0.71	28.1	50.8	± 2.58
450				152.8	246.7	± 11.04	78.0	140.7	± 0.90	47.2	87.1	± 1.34	31.6	55.6	± 3.41
500				169.8	271.1	± 12.50	86.6	152.1	± 1.51	52.4	96.4	± 1.96	35.1	61.9	± 2.74
550				186.7	296.5	± 14.73	95.3	163.6	± 1.62	57.6	105.5	± 1.57	38.6	67.1	± 3.63
600				203.7	340.6	± 14.79	103.9	178.8	± 2.32	62.9	115.6	± 1.83	42.1	73.4	± 3.98
650				220.7	362.6	± 15.40	112.6	192.7	± 1.56	68.1	124.8	± 1.96	45.6	79.5	± 4.10
700				237.7	368.3	± 25.65	121.3	206.9	± 2.08	73.4	133.8	± 2.32	49.1	85.8	± 4.91