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

Convective Velocity in Solids

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 19, 2022, 10:26
Default Convective Velocity in Solids
  #1
cwl
Senior Member
 
Chaotic Water
Join Date: Jul 2012
Location: Elgrin Fau
Posts: 436
Rep Power: 17
cwl is on a distinguished road
Hi everyone!

I'm trying to use the Convective Velocity Option in a simple "brick" body - to get an unsteady moving temperature ditribution.
Thermal conductivity is set to 1.0E-32 - so there is no conductive heat transfer.
Initial temperature distribution has a sin-shape, so it's a smooth function.



Non-zero convective velocity is set for X-axis.
The only non-adiabatic boundary condition is on the short side, where temeprature is set to const.
So I expect the temperature profile to move along the X-axis unchanged.

But .. it is not happening - the ammplitude of the initial temperature distribution is decreasing.



I've tried all the possible solver options (approximation orders, under-relaxation factors, time step etc) - but no luck.

Any ideas - or is there something I am missing?
cwl is offline   Reply With Quote

Reply


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
Velocity Magnitude not showing results musa19 Tecplot 1 November 18, 2020 23:49
Convective boundary condition using average velocity bala_gk1988 OpenFOAM Programming & Development 1 January 16, 2019 09:04
LES and TKE calculations MST Main CFD Forum 3 May 30, 2016 06:26
Velocity in Porous medium : HELP! HELP! HELP! Kali Sanjay Phoenics 0 November 6, 2006 06:10
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 05:13


All times are GMT -4. The time now is 15:30.