a5806207c3
The integration of force and heat transfer onto the particle is facilitated by a run-time-selectable integration scheme. These schemes were written to generate the value at the end of an intregration step and also an average value over the step from which the total transfer was computed. The average value in the Euler scheme was implemented incorrectly, which resulted in the momentum and heat transfer processes being non-conservative. Implementing the average correctly, however, would have inteoduced a number of trancendental functions which would have negated the purpose of the Euler scheme as the cheap and stable option. The schemes have been rewritten to generate changes over the step, rather than the final value. This change is then used to calculate the transfers. Regardless of the scheme, this formulation is guaranteed to be conservative, and the Euler scheme remains computationally inexpensive. This change was made with help from Timo Niemi, VTT This resolves bug report https://bugs.openfoam.org/view.php?id=2666
README for OpenFOAM-dev
- About OpenFOAM
- Copyright
- Download and installation instructions
- Documentation
- Source code documentation
- OpenFOAM C++ Style Guide
- Reporting bugs in OpenFOAM
- Contacting the OpenFOAM Foundation
#
About OpenFOAM
OpenFOAM is a free, open source computational fluid dynamics (CFD) software package released by the OpenFOAM Foundation. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics and electromagnetics.
Copyright
OpenFOAM is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version. See the file COPYING in this directory or
http://www.gnu.org/licenses/, for a description of the GNU General Public
License terms under which you can copy the files.