How to plot residuals in OpenFOAM: functionObject and pyFoam utilities

Categories: Engineering files, Multiphase Flow, OpenFOAM

Engineering Downloads

Level

Intermediate
Total Enrolled

1
Duration

13 minutes
Last Updated

July 8, 2025
Certificate

Certificate of completion

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Why monitoring residuals is essential in CFD
How to use the residual functionObject in OpenFOAM
How to plot residuals using PyFoam utilities
Understanding function objects and their role in runtime control
Basics of automating residual plots during and after simulations
Differences between OpenFOAM-native tools and external utilities like PyFoam

About Course

Product Overview

In this tutorial, you will learn how to plot residuals in OpenFOAM, a critical step in validating the convergence and stability of your CFD simulations. The video walks through two powerful approaches—using built-in function objects and PyFoam utilities—to help you monitor and visualize residuals during runtime or post-processing.

Whether you’re running steady-state or transient simulations, this tutorial gives you the tools to ensure your results are trustworthy and meet convergence criteria.