3569172
doi
10.5281/zenodo.3569172
oai:zenodo.org:3569172
Losert Benjamin
ecoplus. Niederösterreichs Wirtschaftsagentur GmbH
Kobler, Eva
Johannes Keppler Universität Linz
Steinbichler, Georg
Johannes Keppler Universität Linz
Introduction to OpenFoam® and chtMultiRegion using an application-oriented example
Mitterlehner, Thomas
Johannes Keppler Universität Linz
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
additive manufacturing
OpenFoam
chtMulitRegion
close contour cooling channel
cooling channel
AM4Industry
<p>In the course of the work on the AM 4 Industry project, research on the design and simulation of near-contour cooling channels was carried out. One objective was to provide toolmaking engineers with an instrument that could be used to further optimise cooling channel geometries. Particularly in the design of near-contour and irregular cooling channels, simulation using commercial simulation programs may not be sufficient and thus require additional simulation steps. For this additional or supplementary simulation step, the focus was deliberately placed on a non-commercial simulation program. Therefore, the program OpenFoam® (Open Source Field Operation and Manipulation) was chosen for the simulations. This is freely available and is mainly used to solve flow problems (Computational Fluid Dynamics). It is written in C++ and comes with useful solvers even in the basic version, and a wide variety of further solvers can be adapted. One of the major advantages is that the source code and thus also the algorithms are freely accessible; and another, that the codes and calculations can be extended almost arbitrarily.<br>
Based on an application-oriented example, this manual describes the structure and the<br>
performance of a simulation in detail. The solver chtMultiRegion was used for the simulations. This is generally used to calculate the heat exchange between a solid and a fluid.<br>
The objective of this manual is to give users in development, simulation engineers and students an application-oriented introduction to OpenFoam®, as well as an overview of how to work with it. The individual steps were grouped into nine chapters with the following contents:</p>
<ul>
<li>Chapters 1 and 2 give a general overview of the simulation example as well as of the simulation structures of OpenFoam®</li>
<li>Chapters 3 to 6 show how a simulation case is set up in OpenFoam®, and which settings are required. The creation of the calculation mesh and the allocation of the surfaces are dealt with in detail.</li>
<li>Chapters 7 and 8 address the performance of the simulation. The choice of the boundary condition and the theory of flow simulation are dealt with.</li>
<li>Chapter 9 concludes by discussing the evaluation methods offered by OpenFoam®, and how the results can be exported for further processing.</li>
</ul>
<p>Finally, it should be mentioned that the OpenFoam® environment may seem strange at first glance, especially for users accustomed to Windows® operating systems. Patience is definitely required here. It simply takes time for the program’s processes to be perceived as logical, and to become proficient in the commands necessary for the operation and execution of the program. However, it will certainly be worthwhile to get deeply into this topic, as it offers the possibility to further refine one’s simulations and make better predictions. This may in turn provide a clear competitive advantage. Thus: Happy Foaming!</p>
Zenodo
2019-12-02
info:eu-repo/semantics/report
3559686
1579533060.419064
5525432
md5:bf43be4d81e503370e80c09a8639afcc
https://zenodo.org/records/3569172/files/05 EN -AM4I-OpenFoam-chtMultiRegion_FINAL_V2.pdf
5247836
md5:971f059a2d93ef97afb59940d2debcc0
https://zenodo.org/records/3569172/files/05 EN -JKU - AM4I-OpenFoam-chtMultiRegion.pdf
public
10.5281/zenodo.3559686
isVersionOf
doi