Dear all,

I am now confusing about the fundamental concepts of turbulence.

What's fully developed turbulence? Surely we could see the Re is high enough, but we don't know the exact value for the word "high" for a given complex flow. There should exist some criteria to determine the flow state. I have found some one use turbulent energy spectrum to judge whether it is fully developed turbulence or not based on -5/3. I don't know whether this is a general method.

Any comment is welcome, if possible please give the references. thanks a lot!

regards, sincerely, sarah

ask again~~~

Hi Sarah, I don't know the answer to the question however it is an interesting question so why don't you post it on the Main Forum. People there may be able to answer it for you ?? If you get an answer then please let me know ! Cheers Bob

sure, I had posted it in the maif forum, but still waiting for reply~~~

I will let you know once i get reply~~