About the Webinar
High-fidelity numerical simulations are becoming increasingly important across engineering and scientific disciplines. From complex fluid flows and particle-laden systems to heat transfer, environmental flows, and large-scale industrial applications, computational simulations provide insights into physical processes that may be difficult or impossible to obtain experimentally.
However, performing such simulations at high fidelity and large scale comes with a significant computational cost. Many engineers, application scientists, and domain experts may not have access to simulation software that can efficiently exploit modern high-performance computing (HPC) resources. As a result, computationally demanding simulations can take days to complete, limiting the number and scale of simulations that can realistically be performed. In some cases, the computational requirements may even discourage researchers and engineers from pursuing large-scale or high-fidelity simulations altogether.
This creates an increasing need for highly scalable simulation software capable of efficiently utilising modern HPC systems. With the growing importance of GPU-accelerated computing, simulation frameworks must also be able to effectively exploit GPUs and large heterogeneous computing systems.
To bridge this gap, HiDALGO2 is pleased to promote an upcoming beginner-friendly training webinar on waLBerla (widely applicable Lattice Boltzmann from Erlangen), an open-source, massively parallel framework designed for large-scale multiphysics simulations.
waLBerla provides the computational infrastructure required to develop highly scalable simulation applications for a broad range of problems, including:
– Complex fluid-flow simulations
– Multiphysics simulations
– Particle-laden flows
– Thermal and heat-transfer problems
– Large-scale CPU- and GPU-based simulations
The capabilities of waLBerLa have already been demonstrated in a variety of scientific and engineering applications. Examples include laser beam welding, piping erosion in suction buckets for offshore wind farms, thermal particle-laden flows, pollutant transport in urban environments, and wind-farm simulations, among others.
Bridging the Gap Between Powerful HPC Frameworks and Application Scientists
While open-source HPC frameworks such as waLBerla provide powerful capabilities for large-scale simulations, getting started with such software can be challenging.
Large scientific software frameworks inevitably contain many interacting components and abstractions. For a new user, understanding the overall software structure, identifying the important building blocks, and determining how these components should be combined to create a simulation application can require a significant amount of time.
This can create a considerable entry barrier for application developers, engineers, domain scientists, and researchers who are primarily interested in using the framework to solve scientific or engineering problems.
The objective of this webinar is therefore to bridge the gap between the capabilities offered by a large-scale open-source simulation framework and the application scientists who would like to use those capabilities.
Rather than approaching waLBerla primarily from the perspective of framework development, the webinar presents its concepts from the perspective of an application developer, user, or domain scientist:
What are the important components of waLBerla? How do they work? Why are they needed? How are they represented in code? And how can they be combined to develop your own simulation applications?
What Will the Webinar Cover?
The webinar is designed as a beginner-friendly introduction to developing simulation applications with waLBerla.
It consists of five structured tutorials, combining presentations with detailed code demonstrations. The tutorials progressively build upon one another, starting with the fundamental concepts required to understand a waLBerla application and gradually introducing the building blocks required for more complex simulation setups.
The emphasis throughout the webinar will be on connecting the underlying concepts directly to their practical implementation. Detailed code demonstrations will therefore accompany the presentations, allowing participants to see how the concepts discussed during the tutorials translate into actual waLBerla applications.
Each tutorial builds on the knowledge introduced in the previous tutorials. By the end of the webinar, participants should be familiar with the fundamental structure and concepts of waLBerla and be in a position to explore and understand existing waLBerla applications and begin developing their own applications, including more complex simulation setups by building upon the concepts introduced during the webinar.
Event Details
- Date & Time: Monday, October 12, 2026 | 09:00 AM CEST (Approx. 4–5 hours)
- Instructor: Ravi Kiran Ayyala Somayajula, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
- Contact Email:
ravi.k.ayyala@fau.de - Format: Online Webinar (Presentations + Live Code Demonstrations)
- Registration: Register via Zoom-X
Who Is This Webinar For?
The webinar is specifically intended for beginners and participants with little or no previous experience working with waLBerla.
It is particularly relevant for:
-Application developers
– Domain scientists
– Engineers
– CFD and multiphysics researchers
– Researchers interested in particle-laden flows and heat transfer
– Scientists interested in large-scale numerical simulations
– Users interested in exploiting modern HPC and GPU systems for computationally demanding simulations
No previous working experience with waLBerla is required.
The goal is to provide participants with the conceptual foundation required to navigate the framework, understand its major components, follow existing applications, and begin using waLBerla for their own scientific and engineering problems.
Webinar Format
The webinar consists of five tutorials, each containing a combination of presentations and detailed live code demonstrations.
There will be no hands-on programming session, and participants will not be required to write or modify code during the webinar.
Nevertheless, participants are encouraged to install and build waLBerla before the webinar. Having a working installation available will make it easier to follow the code demonstrations, explore the presented examples, and reproduce the tutorials independently during or after the webinar.
Installation and Preparation
Participants who would like to follow the code demonstrations are encouraged to install and successfully build waLBerla before the start of the webinar.
Detailed instructions for obtaining, installing, and building the code is provided here.