residence time

yorelchr · May 29, 2014, 03:41

Hello,

Does someone know what is residence time in the Lagrangian model?

Thank you for any help

me3840 · May 29, 2014, 12:26

https://en.wikipedia.org/wiki/Residence_time

yorelchr · May 29, 2014, 12:36

hi,

thank you for the link, but I already read that and it is not really of help to me. I just don't see why we need that in Lagrange model.
I think I'll try eulerian multiphase, I'll get maybe more lucky with that one :-)
Thank you

me3840 · May 29, 2014, 12:39

There are plenty of situations where one would like to know how long a particle spends inside a particular location. That's the purpose of residence time.

yorelchr · May 30, 2014, 03:34

I understand, but in my situation there is no interest in knowing it. And in fact, with Lagrangian model, I don't even know if I could do what I need to do, I don't understand how I can have control on particles; everything seems to act on the continuous phase. I am trying today Euler but I'll get another problem : no porous zone or porous baffle available with Euler...

May 29, 2014, 03:41	residence time	#1
yorelchr Senior Member christine Join Date: Jul 2009 Location: europe Posts: 125 Rep Power: 16	Hello, Does someone know what is residence time in the Lagrangian model? Thank you for any help

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May 29, 2014, 12:26		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	https://en.wikipedia.org/wiki/Residence_time

May 29, 2014, 12:36		#3
yorelchr Senior Member christine Join Date: Jul 2009 Location: europe Posts: 125 Rep Power: 16	hi, thank you for the link, but I already read that and it is not really of help to me. I just don't see why we need that in Lagrange model. I think I'll try eulerian multiphase, I'll get maybe more lucky with that one :-) Thank you

May 29, 2014, 12:39		#4
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	There are plenty of situations where one would like to know how long a particle spends inside a particular location. That's the purpose of residence time.

May 30, 2014, 03:34		#5
yorelchr Senior Member christine Join Date: Jul 2009 Location: europe Posts: 125 Rep Power: 16	I understand, but in my situation there is no interest in knowing it. And in fact, with Lagrangian model, I don't even know if I could do what I need to do, I don't understand how I can have control on particles; everything seems to act on the continuous phase. I am trying today Euler but I'll get another problem : no porous zone or porous baffle available with Euler...