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

Attaining velocity from Temperature in Paraview

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 6, 2016, 06:43
Default Attaining velocity from Temperature in Paraview
  #1
New Member
 
Young jin kwak
Join Date: Nov 2016
Posts: 4
Rep Power: 9
yjkwak is on a distinguished road
Hello, I am newbie in CFD
I am simulating SI engine by Converge, and I have results in cell.vtu file, which
holds only temperature values.
What I want to do is by using be temperature value on the result to track the flame propagation and get speed value from it.
What shall I do?

Last edited by yjkwak; November 6, 2016 at 10:26.
yjkwak is offline   Reply With Quote

Old   November 17, 2016, 18:01
Default
  #2
Member
 
xieshengbai's Avatar
 
Shengbai Xie
Join Date: Aug 2016
Location: Convergent Science, Madison WI
Posts: 68
Rep Power: 10
xieshengbai is on a distinguished road
Hi,

If temperature is the ONLY thing you have, maybe you can track the flame front by looking at some temperature iso-surface, or large temperature gradient, something like that. For the flame speed, you have to have multiple time frames, and calculate the distance moved by the flame front from one frame to another and divide it by the time interval. It is only a rough estimate and would be very tedious.

However, you can save your time at the case-setup stage by dumping the flame speed to the post files. In post.in add the following line:

tur_flamespeed Turbulent flame speed in the cell (m/s).

Or, you can set it up in STUDIO: Case setup > Output / Post processing > Post variable selection > Cells > Combustion / Turbulence > Turbulence Flame Speed.

Hope it helps.

Quote:
Originally Posted by yjkwak View Post
Hello, I am newbie in CFD
I am simulating SI engine by Converge, and I have results in cell.vtu file, which
holds only temperature values.
What I want to do is by using be temperature value on the result to track the flame propagation and get speed value from it.
What shall I do?
xieshengbai is offline   Reply With Quote

Reply

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
Static Temperature / Opening Temperature JulianP CFX 12 April 10, 2019 19:00
Ansys CFX problem: unexpected very high temperatures in premix laminar combustion faizan_habib7 CFX 4 February 1, 2016 18:00
Dimensionless wall distance and velocity in paraview Sören Sander OpenFOAM Post-Processing 4 November 27, 2015 02:50
transient case velocity and temperature problem amr mobarez Main CFD Forum 0 April 28, 2014 20:00
velocity and temperature profile panagiotis FLUENT 2 May 1, 2009 08:05


All times are GMT -4. The time now is 19:17.