Structure function in turbulence

[ATY]

Hey guys,
I need your help. I have to write a homework and we are actually looking at structure functions (Kolmogorov 41 and so on), but I have no clue what it does. So I have formulas, but I do not understand what a structure function is. Is it something in the "real world" or is it just a way to connect data ?

I hope you can explain it to (or for ? my english is not good) me.

PS: I did not ask this in the homeworks/course works forum, because it is not really a question about my homework, but about physics itself.

 

[olivermsun]

Hey guys,
I need your help. I have to write a homework and we are actually looking at structure functions (Kolmogorov 41 and so on), but I have no clue what it does. So I have formulas, but I do not understand what a structure function is. Is it something in the "real world" or is it just a way to connect data ?

Well, it is an interesting question that you pose, whether it is "real" or just some kind of abstraction.

Do you have an example structure function from your textbook that you would like to examine