Advances in Valveless Piezoelectric Pump with Cone-shaped Tubes

Chinese Journal of Mechanical Engineering

Table 1 Relationship between cone angle and flow direction

Serial No.	Reference No.	Spatial structure	Cone angle θ / (°)	Flow direction	Flow direction deduced in Ref. [26]
1	[2]	Solid	5.3	Clockwise	Clockwise
2	[2]	Solid	10.7	Clockwise	Clockwise
3	[9]	Solid	70.52	Counterclockwise	Counterclockwise
4	[10]	Solid	70	Counterclockwise	Counterclockwise
5	[11]	Solid	2.15	Clockwise	Clockwise
6	[12]	Solid	35.3	Counterclockwise	Counterclockwise
7	[14]	Solid	10	Clockwise	Clockwise
8	[15]	Plane	6.2	Clockwise	Clockwise
9	[18]	Plane	9.4	Clockwise	Clockwise
10	[21]	Plane	8	Clockwise	Clockwise
11	[22]	Plane	10	Clockwise	Clockwise
12	[23][24]	Plane	10	Clockwise	Clockwise
13	[25]	Plane	10	Clockwise	Clockwise
14	[26]	Plane	7	Clockwise	Clockwise