KROHNE ALTOSONIC V EN - Manual (Page 28)

ALTOSONIC V
Operating Manual rev02 E 7.30850.34.00 Page 28 of 106
For example a symmetrical swirl profile would look like this:
For this example in relation to normal: ch5 larger, ch1 smaller, ch4 smaller, ch2 larger, and ch3 close
to normal.
The above profile would lead to about 20% Swirl and would have a large influence on the flow
measurement.
pipe wall
ch 5, Swirl vector in direction measure vector
ch4: Swirl vector opposite measure vector
ch3: With symmetrical swirl no swirl component in center
ch2: Swirl vector in direction measure vector
ch1: Swirl vector opposite measure vector
pipe wall
side view top view
vector : output (velocity)
vector : swirl (velocity)
vector : measure (velocity)
explanation