Tech Articles

Actran User Defined Wizard: Nacelle Radiation


Tech Articles ID    KB8023785
Status:    Published
Published date:    06/19/2019
Updated:    06/27/2019
Reported In:   Actran - Actran VI
Created with Version:   Actran
 

Abstract (Question)

How can I compute far field pressure and attenuation due to acoustic treatment in nacelles ?

 

Description (Answer)

Acoustic treatment also called liners are used to attenuate the noise generated by aircraft engines. Those treatments are integrated in the nacelle and very often represented as acoustic admittance.

In the documents attached to this article, a user defined wizard for Actran is provided and explained. The objective is to provide one simple way to calculate such acoustic model. Both the pre- and post-processing of the model is performed by the wizard. The pre-processing includes the calculation of the mean flow around the aircraft engine.

Important Note: this wizard is created based on some very specific input data. As those input data are most likely different from the ones you have, we suggest you to contact the support to get explanations on how this wizard can be adapted to your specific input or needs.

A video demonstrating the functioning of the wizard is provided.

As always, do not hesitate to contact the support to get more information about such feature.

 

English Attachment

UserDefinedWizard_Nacelle_Acoustics.zip
18MB • 53 minute(s) @ 56k, 2 minute(s) @ broadband