Investigation of Horizontal Velocity Fields in Stirred Vessels with Helical Coils by PIV

Table 1

Geometric dimensions of tank and coils.

Symbol	Value	Unit	Comment
𝑑1	210	mm	Inner tank diameter
𝑑i𝐶	144	mm	Inner diameter of inner coil
𝑑o𝐶	177	mm	Inner diameter of outer coil
𝑑𝑃	4.7	mm	Pipe diameter
𝑛𝐶	17		Number of turns
𝑚𝐶	9.5	mm/Turn	Coil pitch
ℎ𝐶	43	mm	Bottom clearance of lowest coil
ℎ1	50	mm	Bottom clearance of stirrer