Author(s)

Zixi Yang

Corresponding Author

Zixi Yang

Abstract

With the development of aviation, researchers have focused on the impact of engine noise on passengers. To mitigate the impact of engine noise, several researchers study computational fluid dynamics. Computational Fluid Dynamics (CFD) employs several algorithms to solve fluid flow problems. This technique is an important research tool, which has been exploring noise propagation mechanisms and noise reduction techniques. This paper reviews the progress of computational fluid dynamics (CFD) methods in noise propagation and noise reduction effects of commercial airplane engines. First, we review the development of the CFD method and several basic principles in noise research. Second, we analyze the details of the improvements in CFD simulation technology in recent years. These details include high-precision simulation, multi-scale coupling, and improvement of computational efficiency. Next, we summarize the main noise reduction techniques based on CFD and their application cases. These cases show the effectiveness and application prospects of these techniques in practical engineering. Finally, we discuss several challenges of current research, such as the further improvement of simulation accuracy and the optimal allocation of computational resources. We also look forward to the future work. This review shows that the progress of CFD technology. Our work may have important research and application value for the research area of computational fluid dynamics.

Keywords

commercial aircraft, engine noise, Computational Fluid Dynamics (CFD), noise reduction, aeroacoustics