A Unified Correction Method for the Acoustic Refraction (UCMAR) Caused by a Three Dimensional Shear Layer

• DOI: 10.3813/aaa.919353
• Publication Date: 2019-10-26T05:08:17Z
• Authors: Lican Wang; Rongqian Chen; Yancheng You; Wenjun Wu; Ruofan Qiu
• Keywords: 0103 physical sciences; 01 natural sciences

The acoustic refraction induced by the shear layer in an open-jet wind tunnel causes a source shift when estimating location with beamforming. Traditional correction methods of are achieved through computational eff ort or limited using one-dimensional planar layer. In this paper, unified method for (UCMAR) is suitable three dimensions that covers several traditional forms. Meanwhile, UCMAR can consider more general configurations, such as temperature gradient on both sides and off -axis circular tunnel. These configurations validated ray tracing technique benchmark example. addition, principle time reverse integrated UCMAR. This results UCMAR, which quickly attain acceptable solution.