Discretization by Jozsef Nagy

• contributor: Jozsef Nagy
• affiliation: Institute of Polymer Injection Molding and Process Automation, Johannes Kepler University Linz, Austria
• contact: click here for email address
• OpenFOAM version: 2.3.0
• Published under: CC BY-NC-SA license (creative commons licenses)

Go back to Day 4.

Discretization

In this tutorial

• part 1
• part 2

you will get a detailed introduction into discretization. The order of magnitude of the utilized discretization is as important as your grid resolution. A detailed knowledge on the basics will help you improve your simulations results. This tutorial gives you an understanding on the theory, an introduction on the implementation as well as the application of different schemes within an OpenFOAM case. The topics covered here are:

• spatial discretization
• face interpolation
• changing schemes in OpenFOAM
• divergence schemes
• influence of discretization on the simulation results of a passive scalar
• post processing

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• contributor: Bahram Haddadi, Jozsef Nagy and Christian Jordan
• affiliation: Forschungsgruppe Thermische Verfahrenstechnik & Fluiddynamische Simulation am Institut für Verfahrenstechnik der Technischen Universität Wien, Austria
• contact: click here for email address
• OpenFOAM version: 2.3.0
• Published under: CC BY-NC-SA license (creative commons licenses)
• additional acknowledgements: Clemens Gößnitzer, Vikram Natarajan, Sylvia Zibuschka, Michael Harasek

Grid convergence

In this pdf you will find a written step-by-step walkthrough of the tutorial above.