some question of bubble Image use for PIVLab

[Sin Liou]

Dear PIVLab team,

Now I try to use time serial bubble image with FPS 100, now I try to use PIVLab for fluid analysis,  could you please give me some advise about the image in attached can be analysis by PIVLab? Or I need to do some Pre-process? 

I appreciate your kind assistance.

[Sin Liou]

[Alex Liberzon]

if you want to know the underlying flow field, you probably need to add tracers to the fluid. if you want to know the motion of separate bubbles, this seems to be a job for tracking software, particletracker, trackpy in Python or PTVLab in Matlab, stuff like that. 

On Friday, February 11, 2022 at 11:17:16 AM UTC+2 rin...@gmail.com wrote:

[William Thielicke]

Particle tracking might be better, but if you want to stick with PIV, you would have to increase the framerate or increase the size of the FOV. Your bubble displacement from one image to the other is about 150 pixels. But it should be int the range between 0 and approx. max. 30 pixels.