Broadband Noise Modeling in Aeroacoustics

Step into the world of broadband noise modeling with this hands-on course designed to give you both the theoretical foundation and practical skills to tackle complex aeroacoustics challenges. You will begin with a clear overview of broadband noise models and their critical role in estimating noise across a wide frequency range.

Explore the differences between models based on time-averaged flow data and those using reconstructed unsteady fields. Learn how to activate and apply these models in Ansys Fluent® fluid simulation software and gain practical experience in setting up simulations for accurate noise prediction.

You will also dive into unsteadiness synthesis techniques and explore noise estimation methods using the linearized Euler equation and Lilly’s equation. Along the way, you will uncover the assumptions and limitations of each approach, equipping you with the insight to choose the right model for your engineering challenges.

Learning Outcomes:

Following completion of this course, you will be able to:

• Understand the basics of broadband noise models and their significance in noise estimation across various frequencies.
• Differentiate between models based on average quantities and those using fluctuating flow field reconstructions.
• Gain knowledge of specific models such as Proudman's formula, the boundary layer noise source model, and the jet noise model.
• Explore the application of these models effectively for practical noise estimation problems using Ansys Fluent software.

Please note: These training materials were developed and tested in the 2024R2 release.