ANSYS FLUENT TRAINING: Sound Generation on Airfoil CFD Simulation (Acoustic)

Опубликовано: 02 Октябрь 2024
на канале: MR-CFD ANSYS Fluent Training

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The present problem simulates sound pressure waves around an airfoil using ANSYS Fluent software. In general, sound waves within a fluid are caused by vibrations and reciprocating movements of the fluid layers. For example, when a layer of air moves forward in a certain direction, the next fluid layer pushes itself forward and the layer itself returns to its original position. These reciprocating movements of the air layers must continue until the energy within the air flow is depleted. Now if this number of reciprocating movements reaches more than 16 times per second, sound is produced.

In fact, when we hit the surface of a solid object with our hand, the layers of air between our hand and the surface begin to move back and forth, if the number of these round trips exceeds 16 times per second, the sound is produced by our hand hitting a solid surface. Topics related to sound waves are very important in aerospace applications and fields; Because the sound waves produced in aerospace devices such as airfoils are very high. This project examines the sound waves generated around the body of an airfoil. In this project, 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.