CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLOW-3D

How to calculate suspended sediment concentration ?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 14, 2009, 03:12
Red face How to calculate suspended sediment concentration ?
  #1
New Member
 
linfangcai
Join Date: May 2009
Posts: 9
Rep Power: 8
fang is on a distinguished road
hi to all: i want to use the sediment scour model.In the initial menu,i set up fluid region 1,but i don't understand how to define suspended sediment concentration.How to calculate suspended sediment concentration ?thank you !
fang is offline   Reply With Quote

Old   January 13, 2010, 02:42
Default
  #2
New Member
 
Join Date: Jan 2010
Posts: 2
Rep Power: 0
fbmoon is on a distinguished road
Hi, fang

To define the initial suspended sediment concentration, you could fill the box of SS #1 whith initial SS concentration of the tree menu of the Fluid Region 1, ie, Fluid Region 1 -> Scalars -> SS #1. in Initial Tab.

Hope this will help ^^;
Bye.
fbmoon is offline   Reply With Quote

Old   January 18, 2010, 08:25
Default
  #3
Member
 
Armen A. Ghirghidov
Join Date: Mar 2009
Posts: 50
Rep Power: 8
Ghirghidov is on a distinguished road
Another question is how can I set at boundary different sediment concentration in vertical direction?
Thanks for reply.
Regards, Ghirghidov
Ghirghidov is offline   Reply With Quote

Old   January 20, 2010, 12:26
Default
  #4
Senior Member
 
michael barkhudarov
Join Date: Mar 2009
Posts: 331
Rep Power: 9
MuxaB is on a distinguished road
Quote:
Originally Posted by Ghirghidov View Post
Another question is how can I set at boundary different sediment concentration in vertical direction?
Thanks for reply.
Regards, Ghirghidov
Armen,

You mean, for example, the suspended concentration varying along the z coordinate? It must be done through a customization, I am afraid.

Michael
MuxaB is offline   Reply With Quote

Old   January 20, 2010, 12:28
Default
  #5
Senior Member
 
michael barkhudarov
Join Date: Mar 2009
Posts: 331
Rep Power: 9
MuxaB is on a distinguished road
Quote:
Originally Posted by Ghirghidov View Post
Another question is how can I set at boundary different sediment concentration in vertical direction?
Thanks for reply.
Regards, Ghirghidov
Another possibility is to setup a flow that can produce such sediment distribution, run it to steady-state and then do the original simulation as a restart from this one, using the steady-state solution as the boundary condition.
MuxaB is offline   Reply With Quote

Reply

Tags
sediment concentration

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
UDF to Access Wall Normal Concentration Gradient Daniel Tanner Fluent UDF and Scheme Programming 4 February 18, 2015 15:35
Concentration Scale Data Interpretation usker CD-adapco 4 October 23, 2007 20:30
How to calculate the particle concentration? Ken CD-adapco 1 April 19, 2007 12:10
How to calculate the concentration of DPM (Urgent) ALEX FLUENT 6 January 24, 2006 00:15
initial concentration in multicomponent mixtures isidro CD-adapco 0 April 26, 2004 07:40


All times are GMT -4. The time now is 22:02.