TY  - EJOU
AU  - Cui, Ziyu 
AU  - Wei, Zijun 
AU  - Yuan, Xiaohui 
AU  - Li, Pei 

TI  - CGAN Accelerated Subdivision Surface BEM for Acoustic Scattering
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2025
VL  - 144
IS  - 1
SN  - 1526-1506

AB  - At present, noise reduction has become an urgent challenge across various fields. Whether in the context of household appliances in daily life or in the enhancement of stealth performance in military equipment, noise control technologies play a critical role. This study introduces a computational framework for simulating Helmholtz equation-governed acoustic scattering using a boundary element method (BEM) integrated with Loop subdivision surfaces. By adopting the Loop subdivision scheme—a widely used computer-aided design (CAD) technique—the framework unifies geometric representation and physical field discretization, ensuring seamless compatibility with industrial CAD workflows. The core innovation lies in the novel integration of conditional generative adversarial networks (CGANs) into the subdivision surface BEM to assist and accelerate the numerical computation process. In this study, for the two cases examined, the results show that the CGAN-enhanced approach achieves substantial gains in computational efficiency without compromising accuracy. A hierarchical acceleration strategy is further proposed: the fast multipole method (FMM) first reduces baseline computational complexity, while CGAN-driven secondary acceleration and data augmentation enable real-time parameter exploration. Benchmark validations and practical engineering applications demonstrate the method’s robustness and scalability for large-scale structural-acoustic analysis.
KW  - Boundary element method; subdivision surfaces; CGAN; fast multipole method

DO  - 10.32604/cmes.2025.066659