CFD Online Logo CFD Online URL
Home > Forums > ParaView

Calculating time derivative of scalar field

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

LinkBack Thread Tools Display Modes
Old   July 10, 2016, 13:11
Default Calculating time derivative of scalar field
Join Date: May 2015
Posts: 92
Rep Power: 4
Jack001 is on a distinguished road
I have an unsteady (time dependent) simulation to be analysed in paraview. I would like to calculate for instance \frac{\partial \rho}{\partial t} but I can't find a good way to do it. I figured there must be a straightforward way to do this as it must be a common task in CFD.

The only way I can think of is to write a python programmable filter that loops over all points, and for each point calculates the time derivative using a finite difference scheme by accessing the time step of a simulation at that point. However this seems like its going to be very slow...
Jack001 is offline   Reply With Quote


derivatives, paraview, time animation

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
Elastic or Plastic Deformations in OpenFOAM NickolasPl OpenFOAM Pre-Processing 22 January 24, 2017 19:13
problem during mpi in server: expected Scalar, found on line 0 the word 'nan' muth OpenFOAM Running, Solving & CFD 2 April 10, 2015 05:42
Unstabil Simulation with chtMultiRegionFoam mbay101 OpenFOAM Running, Solving & CFD 13 December 28, 2013 14:12
mixerVesselAMI2D's mass is not balancing sharonyue OpenFOAM Running, Solving & CFD 6 June 10, 2013 09:34
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58

All times are GMT -4. The time now is 15:50.