- #1

member 428835

Hi PF!

Fluid lies in a 2D rectangular channel and oscillates from a disturbance. I have several .csv files, each corresponding to a moment in time, where within each are two lists of numbers: the ##x## and ##y## position of a fluid interface. I'd like to decompose the interface into it's fundamental frequencies and amplitudes, like a Fourier transform. Any recommendation on where to look or broad idea what to do? Should I look for a single point on the interface or use the entire interface?

Picture attached for help seeing this.

Fluid lies in a 2D rectangular channel and oscillates from a disturbance. I have several .csv files, each corresponding to a moment in time, where within each are two lists of numbers: the ##x## and ##y## position of a fluid interface. I'd like to decompose the interface into it's fundamental frequencies and amplitudes, like a Fourier transform. Any recommendation on where to look or broad idea what to do? Should I look for a single point on the interface or use the entire interface?

Picture attached for help seeing this.