DOI number:10.3813/AAA.919353
Journal:Acta Acustica united with Acustica
Abstract:The acoustic refraction induced by the shear layer in an open-jet wind tunnel causes a source shift when estimating the source location with beamforming. Traditional correction methods of the shear layer refraction are achieved through a computational effort or limited using one-dimensional or planar shear layer. In this paper, the unified correction method for acoustic refraction (UCMAR) is suitable for the three dimensions that covers several traditional forms. Meanwhile, the UCMAR can consider more general configurations, such as the temperature gradient on both sides of the shear layer and the off -axis source in a circular wind tunnel. These configurations are validated through a ray tracing technique and a benchmark example. In addition, the principle of time reverse is integrated with UCMAR. This results in a reverse UCMAR, which can quickly attain an acceptable solution.
Co-author:Yancheng You, Wenjun Wu, Ruofan Qiu
First Author:Lican Wang
Indexed by:Journal paper
Correspondence Author:Rongqian Chen
Volume:105
Issue:5
Page Number:732-742
Translation or Not:no
Date of Publication:2019-07-01
Included Journals:SCI
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