Opening by Yali Tang

Flavio Galeazzo( High-Performance Computing Center Stuttgart)- Benchmarking CFD Simulations: Comparison Challenges on Heterogeneous HPC Systems

Abstract: OpenFOAM is a widely adopted computational fluid dynamics (CFD) platform that serves both industrial practitioners and academic researchers. As a well-known memory‑bound application, its runtime performance is predominantly dictated by the characteristics of the host memory subsystem as latency, bandwidth, and hierarchy depth, as well as by the nature of the available compute units (CPU or GPU). Consequently, benchmarking OpenFOAM needs a carefully chosen performance metric. With the proper metric, OpenFOAM can also be an effective tool for comparing heterogeneous architectures for memory‑bound applications.

Jingya Li (TU Delft) - Coupling OpenFOAM with Isogeometric Analysis based Solid Solver via preCICE: A Black-Box Pathway to High-Fidelity Fluid Structure Interaction

Abstract: Fluid–structure interaction (FSI) problems involving flexible or geometrically complex solids remain a major challenge in CFD workflows. This talk presents a modular FSI framework that couples OpenFOAM with an advanced isogeometric-analysis (IGA) solid solver (G+Smo) using the preCICE coupling library. The aim is to demonstrate how OpenFOAM users can extend their familiar workflow toward high-fidelity FSI by treating the solid solver largely as a black box, without needing to dive deeply into its internal mechanics or IGA background. Several benchmark cases illustrate how this setup enables accurate and robust FSI simulations while keeping the workflow accessible for users whose expertise lies primarily on the fluid side.

Shyam Hemamalini (TU/e) - LES of turbulent iron powder burner using OpenFOAM

Abstract: OpenFOAM is a highly versatile open-source CFD tool that can be used for several applications. In this presentation, my work on LES of a typical turbulent iron powder burner is presented in a chronological manner - from setup, to execution, and finally analysis - with good detail on the workflow of OpenFOAM, and lessons learned along the way. The flow in focus is a reacting particle-laden turbulent macroscale flow with a mix of several complex phenomena such as turbulent open shear flows, particle-flow interaction, interparticle radiation and particle surface reaction. With experimental data available, how close can we take our simulations to the experiments?

Coffee break

Jan Wilhelm Gärtner (University of Stuttgart) - Testing Strategies for OpenFOAM and FAIR4RS Principles

Sterre Bult (TU Delft) -This study investigates the influence of multiple jet parameters on the flow field of translating impinging inclined water jets. We conducted full-scale stereoscopic particle image velocimetry and pressure measurements and three-dimensional computational fluid dynamics simulations for Reynolds numbers in the range of Re = 23,000−43,750. Considering the complex mechanism of a translating impinging jet, a good concordance is observed between the experimental and numerical results. The translation-to-jet velocity ratio (R) is identified as a critical parameter in determining whether the jet flow predominantly exhibits impinging characteristics or behaves as a jet in cross-flow. It is found that, for R > 0.22, jet impingement is minimal. The stand-off distance to nozzle diameter ratio (H/D) determines the relative influence of the cross-flow on the jet flow. The effect of H/D is similar to a stationary impinging jet, with the potential core extending up to H/D ≈ 4, but entrainment is enhanced by the relative crossflow. For an inclined jet, i.e. jet angle θ = 90◦, the direction of the jet, either backward or forward, governs the deflection of the flow. Higher pressures are recorded for a backward directed jet compared with a forward directed jet for supplementary angles.

Social network with drinks