Dataset FAN-01: Revisiting the EAA Benchmark for a low-pressure axial fan

TL;DR

This paper thoroughly revisits and validates the EAA benchmark for a low-pressure axial fan through detailed aeroacoustic simulation, emphasizing validation steps with experimental data to ensure accurate flow and acoustic predictions.

Contribution

It provides a comprehensive workflow for aeroacoustic simulation of axial fans, including validation procedures and methodological details for accurate modeling.

Findings

Validated flow and acoustic simulation results against experimental data

Established a detailed computational workflow for aeroacoustic analysis

Demonstrated the importance of validation at each simulation step

Abstract

We revisit the online repository, the data source, the details of the experiments, and selected numerical results of the EAA benchmark case of a low-pressure axial fan. We present the whole aeroacoustic simulation process and its validation by experimental results. A successful computation of the flow and acoustic involves the following procedure, including validation: 1. Obtaining a verified mesh for the flow simulation. 2. Evaluating turbulence modeling. 3. Performing a mesh convergence study. 4. Validating significant flow results concerning a subsequent acoustic simulation. 5. Establishing a computational domain and meshing regarding the acoustic field. 6. Acoustic source term calculation includes possible truncation and interpolation from the flow grid to the acoustic mesh. 7. The acoustic field computation and validation of its significant physical quantities. The data acquisition was motivated to cover all validation steps with experimental data regarding this conceptual workflow. We will present physical and methodological details for a successful aeroacoustic fan simulation.