Acoustic ANSYS Fluent Training Package, 5 Practical Exercises

Acoustic CFD Simulation Package, ANSYS Fluent Training

Environmental noise (acoustic) can have significant adverse effects on our everyday lives, including interference with communication, sleep disturbance, learning acquisition, annoyance responses, performance effects as well as our health through cardiovascular and psychophysiological effects. Product designers and engineers at the world’s most innovative and successful companies have recognized this fact and incorporated effective noise mitigation elements into their product design process.

This CFD training package is prepared for BEGINNER, INTERMEDIATE, and ADVANCED users of ANSYS Fluent software in the ACOUSTIC area, including 5 practical exercises. You will learn and obtain comprehensive training on how to simulate projects. The achieved knowledge will enable you to choose the most appropriate modeling approaches and methods for applications and CFD simulations.

There are 3 major ACOUSTIC models all of them are studied in this training package.

Ffowcs-Williams & Hawkings

Problem 1 simulates the sound pressure waves absorbed by a plate silencer. To simulate and analyze sound or acoustic waves, an ACOUSTIC (Ffowcs-Williams & Hawkings) model has been used in the software.  But, one of the problems in various industries is the production of very loud and abnormal sounds due to the propagation of sound waves. Therefore, in such cases, the use of silencers seems imperative.

Acoustic project 2 simulates sound pressure waves around cylinders in 4 different positions (4 cases) using LES. Definitive density is equivalent to air density, i.e., 1.225 kg / m3, the velocity of air is 69.2 m/s and the LES smagorinsky model is used to simulate turbulence of flow. Also, Ffowcs-Williams & Hawking’s equations are used to model ACOUSTIC.

Broadband Noise Sources model

Problem 3 simulates sound pressure waves around an Airfoil. In this project, an ACOUSTIC model in Fluent software has been used to simulate and analyze sound or acoustic waves. The Broadband Noise Sources model has also been used to define the type of acoustic model of the present work.

Problem 4 simulates sound pressure waves around a Car. Aeroacoustics is a branch of ACOUSTIC science that investigates the production of Noise. Topics related to sound waves are essential in aerospace applications and fields because the sound waves produced in aerospace devices such as airfoils are very high.

Wave Equation

Finally, in project 5, noise generation due to a ceiling fan in a room is investigated. There is a 3-D square shape room in which exists a fan in it. Also, there are two square windows considered as inlets and outlets in which wind is blowing inside by the incoming velocity of 3 m/s.

You can obtain Geometry & Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.