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

How to calculate liquid film mass in prostar?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 4, 2012, 04:47
Default How to calculate liquid film mass in prostar?
  #1
Member
 
zheng jianjun
Join Date: Jan 2010
Posts: 46
Rep Power: 7
skylent is on a distinguished road
Hi, everyone.
I wanna calculate the total liquid film mass on the cylinder wall(liner) boundary in IC engine by using pro-Star's postprocessing utility(data loaded from *.ccmt file).

The commands I used as follows:
----------------------------------------------------------------
bset,newset,region,11
! boundary region 11->stands for liner
cset,newset,bset
operate,getw,lfm_1,1
!put area average liquid film mass in register 1(kg/m^2)
operate,getw,area,2
!put (wall)area in register 2,the unit of area ( mm^2)
operate,multi,1,2,3
!put the product of register1*register2 to register 3
operate,smulti,1.0e-6,3,4
!put the product of 1.0e-6*register3 to register 4 (kg)
summarise,cset
----------------------------------------------------------------
but the last command cannot get the right results.
Can anyone help me?
thanks!
skylent is offline   Reply With Quote

Old   December 4, 2012, 11:39
Default
  #2
Senior Member
 
Pauli
Join Date: Mar 2009
Posts: 181
Rep Power: 8
Pauli is on a distinguished road
This may work better:

bset,newset,region,11
! boundary region 11->stands for liner
operate,getw,lfm_1,1
vset news bset
cset news vset all
cset subs shell
!put area average liquid film mass in register 1(kg/m^2)
operate,getw,area,2
!put (wall)area in register 2,the unit of area ( mm^2)
operate,multi,1,2,3
!put the product of register1*register2 to register 3
operate,smulti,1.0e-6,3,4
!put the product of 1.0e-6*register3 to register 4 (kg)
summarise,cset
Pauli is offline   Reply With Quote

Old   December 5, 2012, 20:50
Default
  #3
Member
 
zheng jianjun
Join Date: Jan 2010
Posts: 46
Rep Power: 7
skylent is on a distinguished road
Thanks very much to pauli, it seems work very well.
I think you are a real expert in star-cd.
skylent 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
which solver to model a falling film with mass transfer ? Cyp OpenFOAM 7 April 7, 2015 18:53
Imposing gas and liquid mass flow rate BC for hyperbolic equations omid1361 Main CFD Forum 0 October 17, 2012 02:07
Multiple floating objects CKH OpenFOAM 10 September 21, 2011 23:13
UDF for mass fraction (spilled organic liquid) Klemens Schatka FLUENT 4 July 28, 2009 01:27
how to calculate volume or mass ? Yasmail AKARIOUH FLUENT 1 July 3, 2008 05:51


All times are GMT -4. The time now is 03:09.