choosing a viscous model

sarsam.9296 · June 8, 2013, 06:13

Hi,
I am new to CFD modelling and was facing a few problems with using fluent. I am modelling a T-joint mixer where two streams come in from the ends and mix at the junction and leave from the third. I know that my flow is laminar everywhere except near the junction where it is turbulent due to mixing of streams. What viscous model should I choose laminar or K-epsilon model?? And if I should choose K-epsilon model can you please tell which subcategory among those should I choose. I have has a look at fluent documentation but it was not really helpful. Any help is appreciated. Thanx in advance!!

sina.sh · June 8, 2013, 08:20

Dear sarsam
you should use a turbulence model. you can use k-epsilon or k-omega. if you choose k-epsion model, its better that choose standard. Dont worry! laminar flow can solve by turbulent model.

Regards

sarsam.9296 · June 8, 2013, 10:10

Thanx for the reply. I will keep that in mind

duckhang · June 8, 2013, 13:09

[CÃ¡m on bÃ*i vi?t c?a b?n.

Cho thuÃª kho xu?ng s?n xu?t, m?t b?ng kinh doanh nhi?u di?n tÃ*ch ? hÃ* n?i

LiÃªn h? ch? hi?u 0983660038

June 8, 2013, 06:13	choosing a viscous model	#1
sarsam.9296 New Member Sarthak Nigam Join Date: Jun 2013 Posts: 7 Rep Power: 13	Hi, I am new to CFD modelling and was facing a few problems with using fluent. I am modelling a T-joint mixer where two streams come in from the ends and mix at the junction and leave from the third. I know that my flow is laminar everywhere except near the junction where it is turbulent due to mixing of streams. What viscous model should I choose laminar or K-epsilon model?? And if I should choose K-epsilon model can you please tell which subcategory among those should I choose. I have has a look at fluent documentation but it was not really helpful. Any help is appreciated. Thanx in advance!!

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June 8, 2013, 08:20		#2
sina.sh New Member sina Join Date: Sep 2011 Posts: 28 Rep Power: 15	Dear sarsam you should use a turbulence model. you can use k-epsilon or k-omega. if you choose k-epsion model, its better that choose standard. Dont worry! laminar flow can solve by turbulent model. Regards

June 8, 2013, 10:10		#3
sarsam.9296 New Member Sarthak Nigam Join Date: Jun 2013 Posts: 7 Rep Power: 13	Thanx for the reply. I will keep that in mind

June 8, 2013, 13:09		#4
duckhang New Member duckhang Join Date: May 2013 Posts: 1 Rep Power: 0	[CÃ¡m on bÃi vi?t c?a b?n. Cho thuÃª kho xu?ng s?n xu?t, m?t b?ng kinh doanh nhi?u di?n tÃch ? hÃ* n?i LiÃªn h? ch? hi?u 0983660038