# inlet condition ~??

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 April 4, 2002, 09:34 inlet condition ~?? #1 karen Guest   Posts: n/a My model have two channel The property of wall is between the top channel and below channel . First mixtures [include H2 , CO2 ,H2O] flow through top of channel. Second mixtures [includes O2 , H2O , N2] flow through below of channel.but , first mixtures don't mixed with second mixtures and don't pass throgugh the interface(wall)to other channel ....the behavior of two fluid independently Basic datas of Top channel Mass fraction of H2 is 0.066761 Mass fraction of H2O is 0.4474331069 Mass fraction of CO2 is 0.4858058 mixtures velocity is 0.43 m/sec Basic datas of Below channel Mass fraction of O2 is 0.166787867 Mass fraction of H2O is 0.26002884 Mass fraction of N2 is 0.5731832 mixtures velocity is 0.56 m/sec Two channel have a condition of inlet respectively. How to define the properties of two mixtures in condition of inlet for my model ???? but ,if it is unclear meaning for you , you can tell me ...thank you best regard to you Hsin-Ping

 April 4, 2002, 11:08 Re: inlet condition ~?? #2 Erwin Guest   Posts: n/a If you know your mixture fluid properties (e.g. constant or as function of temperature) then you can treat them as two user defined fluids. This is one approach. Approach 2: if you set up your problem as multiple-species, then in the fluids section you pick the components from the database. In the mixture section of the materials panel you can then define ONE mixture containing all components (you can have only ONE active mixture). In the boundary inlets you then specify the mass fraction of each separate component.

 April 4, 2002, 21:52 Re: inlet condition ~?? #3 David Shkval Guest   Posts: n/a Hi, Chang Hsin-Ping Ya, I think the 2nd approach of Erwin is better, and i use it for non-reacting mixing flow simulations. Wish u'll solve your problem. D Shkval

 April 7, 2002, 08:49 Re: inlet condition ~?? #4 Hsin-Ping Guest   Posts: n/a Dear Erwin thank you for your explanation .. Do you have any E-mail address.. because , i used many photo and figure to describe my model ...it's very clear explanation . thank you Hsin-Ping-Chang

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Ozgur_ FLUENT 5 August 25, 2015 04:58 geryes FLUENT 0 February 25, 2010 17:32 siamak1424 OpenFOAM 2 August 15, 2009 11:14 assighna CFX 1 May 10, 2007 23:36 Thammasak CFX 0 February 9, 2004 14:02

All times are GMT -4. The time now is 08:16.

 Contact Us - CFD Online - Privacy Statement - Top