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

Falling droplets (DPM), rel. humidity > 100% ????

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 25, 2010, 04:52
Default Falling droplets (DPM), rel. humidity > 100% ????
  #1
Member
 
Roman Gobitz-Pfeifer
Join Date: Dec 2009
Location: Stuttgart
Posts: 76
Rep Power: 7
Wikie is on a distinguished road
Hi,

my problem I'm trying to simulate is similar to cooling towers. My droplets are falling due to the gravity. The droplets will evaporate and cool down, the air will heat up and the humidity will increase.
For this I turned on the follwing models: Energy - On; Species - Species Transport; Discrete Phase - On.
I'm using the DPM to simulate the droplets and I use a group injections. I also adjusted the vapour pressure.
One big problem that occours is, that my rel. humidity increases obove 100%.
How can I adjust the evaporation that it will not continue when the humidity reach 100%??

cheers wikie
Wikie 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 set the relative humidity of air in DPM saturn FLUENT 0 April 17, 2009 05:17
how to define the initial relative humidity in DPM satum FLUENT 0 February 28, 2009 03:15
HOW KEEP ON INJECTING DPM DROPLETS Prince Samson FLUENT 1 January 13, 2006 15:35
DPM - droplets John FLUENT 4 August 21, 2005 00:12
DPM & melting of metal droplets Spyros FLUENT 0 June 6, 2005 15:20


All times are GMT -4. The time now is 02:52.