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Technical Brief

An Efficient Algorithm of Wiener-Hopf Method with GPU Duct Acoustics

[+] Author and Article Information
Hanbo Jiang

College of Engineering Peking University Beijing, 100871, China
jianghb@pku.edu.cn

Alex Siu Hong Lau

Mechanical and Aerospace Engineering Hong Kong University of Science and Technology Kowloon, Hong Kong, China
alexshlau@ust.hk

Xun Huang

Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology Kowloon, Hong Kong, ChinaDepartment of Aeronautics and Astronautics College of Engineering Peking University Beijing, 100871, China
huangxun@ust.hk

1Corresponding author.

ASME doi:10.1115/1.4036471 History: Received January 11, 2017; Revised March 29, 2017

Abstract

Acoustic liner optimization calls for very efficient simulation methods. A highly efficient and straightforward algorithm is proposed here for the Wiener-Hopf solver, which also takes advantage of the parallel processing capability of the emerging graphics processing unit (GPU) technology. The proposed algorithm adopts a simple concept that re-arranges the formulations of the Wiener-Hopf solver to appropriate matrix forms. This concept is surprisingly succinct and leads to a stunningly efficient computational performance. By examining the computational performance of two representative set-ups (lined duct and duct radiations), the current study shows the superior performance of the proposed algorithm, particularly with GPU. The much improved computational efficiency further suggests the potential of the proposed algorithm and the use of GPU for practical low noise aircraft engine design and optimization.

Copyright (c) 2017 by ASME
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