Turbulence intensity higher than 1

lucamirtanini · October 5, 2021, 07:15

Hi all,
is it possible that a flow has a turbulence intensity more than 1? Since I saw once a lecture note, that now I cannot find, where the turbulence intensity was expressed in percentage, I am afraid that I am doing a bad calculation because, in a high turbulent flow, I have a result where the turbulence intensity is 2.

sbaffini · October 5, 2021, 08:46

The simplest example to unserstand why it is possible is some flow with nearly 0 mean and large fluctuations of both signs.

Of course, I can't say anything about your calculation, but turbulent intensity can actually have any value

October 5, 2021, 07:15	Turbulence intensity higher than 1	#1
lucamirtanini Senior Member luca mirtanini Join Date: Apr 2018 Posts: 165 Rep Power: 8	Hi all, is it possible that a flow has a turbulence intensity more than 1? Since I saw once a lecture note, that now I cannot find, where the turbulence intensity was expressed in percentage, I am afraid that I am doing a bad calculation because, in a high turbulent flow, I have a result where the turbulence intensity is 2.

October 5, 2021, 08:46		#2
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,151 Blog Entries: 29 Rep Power: 39	The simplest example to unserstand why it is possible is some flow with nearly 0 mean and large fluctuations of both signs. Of course, I can't say anything about your calculation, but turbulent intensity can actually have any value lucamirtanini likes this.

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