circumferential averaged streamwise velocity in ParaView

Goal:

get a averaged axial velocity in a circular loop (dashed line in the following figure)

Steps:

1. import data, and select velocity variable

2. sectional slice

- slice type: plane

- slice origin and normal axis

3. cut a circular using "plot over intersection curve'

Filters -> Alphabetical -> Plot On Intersection Curves

slice type: sphere

- sphere origin: save as plane slice

- sphere radius: user -defined value

x and y axis value

- x : arch length

- y: U_x

all in all

results:

巴特西