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[Simvia Insider #5] openTELEMAC: Getting the most from Q4TS and its Toolbox

From meshing to boundary conditions, the tools and best practices we recommend to prepare your openTELEMAC studies faster and with fewer errors.

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Overview

The fifth episode of the Simvia Insider series, dedicated to improving the user experience of EDF's open-source simulation ecosystem, this free [duration] webinar reviews the toolbox that comes with openTELEMAC, with a particular focus on Q4TS (QGIS for TELEMAC-SALOME).

Q4TS is a QGIS plugin for pre-processing openTELEMAC studies: mesh creation and modification, data interpolation (bathymetry, friction…) and boundary condition file creation. Drawing on feedback from our projects and training courses, the Simvia team will share the workflows and tips we recommend to use these tools efficiently, from installation all the way to launching the computation.

Why attend

Preparing an openTELEMAC study often takes up a large share of engineering time, and the same difficulties keep coming back:

  • A tricky environment to install: getting compatible versions of QGIS, Q4TS, SALOME and openTELEMAC to work together takes time.
  • Meshes that fail on the first try: poorly defined contours, islands, refinement areas and constraint lines block mesh generation.
  • Poorly prepared geographic data: an inconsistent coordinate reference system or badly configured interpolation silently skews results.
  • Tedious boundary conditions: creating the boundary condition file remains a frequent source of errors.

This webinar gives you concrete guidance to avoid these pitfalls and save time on every new study.

What you will learn

Overview of the openTELEMAC toolbox

  • The role of each tool in the pre- and post-processing chain
  • [Other tools covered: to be specified]

Setting up a ready-to-use environment

  • Installation options for Q4TS, openTELEMAC and SALOME
  • Using Simvia's openTELEMAC Docker images, with QGIS and Q4TS built in

Building your mesh with Q4TS

  • Preparing your QGIS project: coordinate reference system, contour, islands and refinement areas
  • Generating, checking and editing the mesh

Preparing study data

  • Interpolating bathymetry and other fields onto the mesh
  • Creating the boundary condition file

Our tips and best practices

Louis
Simvia speaker

Louis Haurie

HPC engineer

Louis applies his expertise in fundamental physics through projects, support missions, and training on the various codes published by Simvia, while ensuring the quality of educational content on the YouTube channel and the company's scientific articles. A Ph.D. in theoretical condensed matter physics passionate about physics, he has initiated various research and popularization projects in parallel.

Learn more
Mariam Kesba
Simvia speaker

Mariam Kesba

CFD engineer

Mariam applies her dual expertise in software development and CFD to the evolution of EDF open-source tools at Simvia. She capitalizes on three years of experience in aerodynamics to address industrial numerical simulation challenges.

Learn more

Practical details

Date
November 19, 2026
Location
Online
  • Date: November 19, 2026
  • Time: 12:00-12:45 pm
  • Format: online
  • Language: English
  • Price: free
  • Audience: hydraulic engineers, engineering consultancies, researchers and PhD students using or discovering openTELEMAC, and more broadly any QGIS user looking to prepare 2D hydraulic models
  • Registration: [link to be completed]

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