CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

how to give two different fluid at the different inlets ?

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree2Likes
  • 2 Post By delaneyluke

Reply
 
LinkBack Thread Tools Display Modes
Old   May 19, 2012, 16:13
Default how to give two different fluid at the different inlets ?
  #1
New Member
 
saurabh mangal
Join Date: May 2012
Posts: 20
Rep Power: 7
lucky_m_m is on a distinguished road
Sponsored Links
Please tell me how to give two different fluids at the inlet. The problem which I am dealing is of the heat exchanger which deals with two different types of liquid water and ethanol, so at the inlet surface of both the fluids I need to give the particular fluid only, Please tell me what model to use, I have used velocity inlet condition for the inlet.
lucky_m_m is offline   Reply With Quote
Sponsored Links

Old   May 21, 2012, 07:15
Default
  #2
New Member
 
kumar ravi
Join Date: May 2012
Posts: 4
Rep Power: 7
ravi_cfd is on a distinguished road
hi ,

first of all you should enable "species Transport " model.

then define the respective fluid's mass / mole fractions at their corresponding inlets.
ravi_cfd is offline   Reply With Quote

Old   May 29, 2012, 07:07
Default
  #3
New Member
 
Tom Mazur
Join Date: May 2012
Posts: 1
Rep Power: 0
liddil is on a distinguished road
I'm a beginner in fluent but what about model two different nozzles and in 1st nozzle will be 1 fluid, in second nozzle 2nd fluid?
Or if you need to model two different fluids mix togehter maybe try "tutorial 19 - Using the Mixture and eulerian Multiphase Models" .
liddil is offline   Reply With Quote

Old   June 12, 2012, 14:21
Default
  #4
New Member
 
Join Date: Nov 2011
Posts: 27
Rep Power: 7
Jabba is on a distinguished road
Quote:
Originally Posted by liddil View Post
I'm a beginner in fluent but what about model two different nozzles and in 1st nozzle will be 1 fluid, in second nozzle 2nd fluid?
Or if you need to model two different fluids mix togehter maybe try "tutorial 19 - Using the Mixture and eulerian Multiphase Models" .
Are you considering the two fluids immiscible?

If so, you may use VOF or Eulerian Multiphase model with the Immiscible Fluids option checked. Then you can change the boundary type to mass-flow inlet. You should be able to define two different inlet velocities for each one of the phases.
Jabba is offline   Reply With Quote

Old   June 13, 2012, 04:22
Default
  #5
Senior Member
 
Join Date: Mar 2009
Location: Indiana, US
Posts: 185
Rep Power: 10
delaneyluke is on a distinguished road
For your case please use the "Multiphase mixture model" and define your fluids by volume fraction at inlet
Eg; Ethanol inlet has Ethanol VF =1 and Water VF = 0..... same for the other inlet

Regards
Luke
sajid and 503131132 like this.
delaneyluke is offline   Reply With Quote

Old   December 7, 2012, 15:48
Default
  #6
New Member
 
Chaudhary
Join Date: Dec 2012
Location: Pakistan
Posts: 8
Rep Power: 6
sajid is on a distinguished road
i want to give fluid and solid particle mixture in shell and tube heat exchanger on shell side at the same inlet .how to do this ? please help me .i m very worried about it because its my final year project .i will be very thankful.
sajid is offline   Reply With Quote

Old   February 10, 2017, 06:56
Default 3 different inlets,3 diff fluid
  #7
New Member
 
karthikeyan subramaniam
Join Date: Jan 2017
Posts: 6
Rep Power: 2
kkn1494 is on a distinguished road
good morning sir
my domain consist of 3 different inlets,.
at 1st inlet water
2nd milk
3rd which is open to atomspere
my doubt is how to set this boundry condition in fluent??
wat is the name of milk in fluent material property??

thank you
kkn1494 is offline   Reply With Quote

Old   February 13, 2017, 06:36
Default hellow....
  #8
New Member
 
Vikash Kumar Singh Chauhan
Join Date: Jan 2017
Location: imphal
Posts: 1
Rep Power: 0
vikash kumar singh chauha is on a distinguished road
there are many ways of doing that one ie using multiphase option or species option in any way you can do that...
vikash kumar singh chauha is offline   Reply With Quote

Old   February 13, 2017, 09:25
Default
  #9
New Member
 
karthikeyan subramaniam
Join Date: Jan 2017
Posts: 6
Rep Power: 2
kkn1494 is on a distinguished road
Quote:
Originally Posted by vikash kumar singh chauha View Post
there are many ways of doing that one ie using multiphase option or species option in any way you can do that...

sir, each inlet i need to give seperate fluid,,will u explain how to do it sir,please,
kkn1494 is offline   Reply With Quote

Old   March 24, 2017, 07:34
Default Phases problem
  #10
New Member
 
caroline
Join Date: Mar 2017
Posts: 16
Rep Power: 2
Cmaroline is on a distinguished road
Hello!

I need some help. I have a microchip with two inlets ( water both) and I want to simulate a flow focused. I apply a VOF model where primary phase is sample and secondary phase sheath. On boundary conditon of insample I put the volum fraction of sheath to 0 and to insheath I put it to 1. But after run calculation I found any flow from insheath. I don't know why?

Please could you help me????
Cmaroline is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to use / How to find IPMT? camoesas CFX 2 November 23, 2010 07:36
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Questions of fluid pairs fjalil CFX 1 June 10, 2009 17:36
how to use fluid fluid interface Beno CFX 0 July 13, 2005 14:08
Chinese Fluid Website Renewed. Zhou Hua Main CFD Forum 0 February 23, 1999 23:08

Sponsored Links


All times are GMT -4. The time now is 17:21.