CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Modelling for CHT steady simulations

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 8, 2018, 08:04
Default Modelling for CHT steady simulations
  #1
New Member
 
Hari Teja Sadhanala
Join Date: Jan 2018
Location: Essen, Germany
Posts: 3
Rep Power: 8
Hari225 is on a distinguished road
Hello,

I wanted to simulate a cylinder head water jacket(just single cylinder head). Steady state simulations, to check the temperatures on the cylinder head parts after the water jacket simulations.

I have a solid parts and a liquid Region(one solid-liquid inetrface)

i have did simulations by modelling with convection as thermal specifications.but the model is not working.

i have a massflow inlet, pressure oulet.
i have defined the solid parts directly with final temperatures(solid block, combustion chamber head, inlet and exhaust valve rings).

sugesst me about the modelling for the CHT.

thanks in advance.
Hari225 is offline   Reply With Quote

Old   February 8, 2018, 18:15
Default
  #2
Senior Member
 
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24
me3840 is on a distinguished road
Do you have a question?
me3840 is offline   Reply With Quote

Old   February 9, 2018, 03:00
Default
  #3
New Member
 
Hari Teja Sadhanala
Join Date: Jan 2018
Location: Essen, Germany
Posts: 3
Rep Power: 8
Hari225 is on a distinguished road
My question is shall i use Heat flux instead of convection in thermal specifications to model the solid Region.?
Hari225 is offline   Reply With Quote

Old   February 9, 2018, 09:41
Default
  #4
cen
New Member
 
Join Date: Oct 2017
Posts: 10
Rep Power: 9
cen is on a distinguished road
what i understood is you have two regions (solid and liquid) then the thermal specification of the interface should be set to conjugate heat transfer, and the thermal specifaction of boundary will be inactive.
cen is offline   Reply With Quote

Old   February 10, 2018, 10:10
Default
  #5
Senior Member
 
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24
me3840 is on a distinguished road
Quote:
Originally Posted by Hari225 View Post
My question is shall i use Heat flux instead of convection in thermal specifications to model the solid Region.?

If you have a solid region then the interface between the fluid/solid needs no special boundary condition.

As for heat input into the solid (if it doesn't come from the fluid), that's up to you and your application. Nobody can tell you if heat flux or convection is a better model of your physical system.
me3840 is offline   Reply With Quote

Old   April 16, 2018, 06:02
Default
  #6
New Member
 
Hari Teja Sadhanala
Join Date: Jan 2018
Location: Essen, Germany
Posts: 3
Rep Power: 8
Hari225 is on a distinguished road
Thanks for the reply.
Hari225 is offline   Reply With Quote

Reply

Tags
cht modelling, cht solid properties, cylinderhead, water cooling

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Setting the height of the stream in the free channel kevinmccartin CFX 12 October 13, 2022 21:43
steady state turbulence modelling?? neprendo FLUENT 1 April 3, 2014 04:27
is it possible to predict how long it takes to reach steady state solution in unstead Alimohamadi_nasr CFX 4 November 11, 2013 06:11
CFL number in steady simulations Rol Main CFD Forum 4 August 20, 2010 09:17
transient phenomenon using steady state simulations beguxa FLUENT 2 April 15, 2010 02:22


All times are GMT -4. The time now is 08:17.