Bringing Flow and Acoustics Together for Aerospace | From Digital Prediction to Real World Acoustic Testing

Aeroacoustics is becoming a key differentiator in aerospace, urban air mobility, and space systems.

In this live webinar, Siemens experts present two complementary approaches:

• Building an acoustic surrogate model based on aeroacoustic simulation for real-time prediction of drone noise
• Direct Field Acoustic Noise (DFAN) testing for replication of realistic aeroacoustic environments in the laboratory

Together, they demonstrate how simulation and test converge into one integrated workflow — enabling faster decisions, higher confidence, and reduced risk.

Application 1 – Predictive Aeroacoustics for Drones

Real‑time tonal noise directivity using surrogate models

This session presents a simulation-based workflow combining aeroacoustic simulation and surrogate modeling to predict drone noise in real time.

• Physics‑based simulation of tonal noise
• Creation of a surrogate model for the acoustic directivity based on the simulation results
• Instant noise prediction across operating conditions
• Real-time acoustic model enables compliance with regulatory limits and prevents detection
• Faster design exploration and earlier decisions

Application 2 – DFAN for aeroacoustic testing

Realistic aeroacoustic environments reproduced in the lab

This session showcases Direct Field Acoustic Noise (DFAN) as a flexible and cost‑efficient alternative to traditional reverberant chambers.

• Controlled synthesis of diffuse and flow‑induced sound fields
• Replication of flight‑relevant acoustic loads
• Scalable testing aligned with digital workflows

Simulation or Test? You Need Both

Watch this webinar to see how predictive simulation and physical testing work together to shape the future of aerospace aeroacoustics.