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首页> 外文期刊>Aerospace science and technology >Design and characterization of a multifunctional low-speed anechoic wind tunnel at HKUST
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Design and characterization of a multifunctional low-speed anechoic wind tunnel at HKUST

机译：HKUST多功能低速消声风隧道的设计与鉴定

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摘要

The Hong Kong University of Science and Technology (HKUST) has installed and commissioned an Ultra quiet Noise Injection Test and Evaluation Device (UNITED). This facility is the first closed-circuit anechoic wind tunnel in Hong Kong. Calibrations and improvements have been made to improve the aerodynamic and aeroacoustic performance since its commissioning in 2016, and various experiments have been conducted in it. The test section is enclosed within a 3.2 m x 3.1 m x 2 m anechoic chamber, and it can be configured as either open-jet or closed test section. The exit plane of the contraction section has a dimension of 0.4 m x 0.4 m, and the flow speed of the test section can be varied from 10 m/s up to 70 m/s. In this paper, the major design constraints and design principles of key wind tunnel sections are described. To achieve low background noise, a silencer network is carefully designed, and a low noise axial fan is specially designed and manufactured for the wind tunnel circuit. It is shown that the metrics of aerodynamic and aeroacoustic performances are comparable to similar facilities across the world. Representative research activities are also briefly summarized in this paper. Particularly, the measurement of trailing edge noise of a flat plate is demonstrated. The measured trailing edge noise collapses well under the classical fifth power-law scaling, suggesting the good performance of the entire measurement system. (C) 2021 Elsevier Masson SAS. All rights reserved.
机译：香港科技大学（HKST）安装并委托了超静音噪声注射测试和评估装置（United）。该设施是香港第一封闭路空运隧道。已经进行了校准和改进以改善2016年调试以来的空气动力学和气动声学性能，并在其中进行了各种实验。测试部分封闭在3.2 m x 3.1 m x 2 m的向内腔室内，它可以配置为开放式或闭合测试部分。收缩部分的出口平面的尺寸为0.4m×0.4米，并且测试部分的流速可以从10m / s的10m / s变化。在本文中，描述了关键风隧道部分的主要设计约束和设计原理。为了实现低背景噪声，精心设计消音器网络，并且为风隧道电路专门设计和制造了低噪声轴向风扇。结果表明，空气动力学和空气声性能的度量与世界各地的类似设施相当。本文还简要概述了代表性的研究活动。特别地，说明了平板的后缘噪声的测量。在经典的第五个电力法缩放下，测量的后缘噪声缩小良好，表明整个测量系统的良好性能。 （c）2021 Elsevier Masson SAS。版权所有。

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  • 来源
    《Aerospace science and technology》 |2021年第8期|106814.1-106814.9|共9页
  • 作者

    Yi Wei; Zhou Peng; Fang Yi; Guo Jingwen; Zhong Siyang; Zhang Xin; Huang Xun; Zhou Guocheng; Chen Bao;

  • 作者单位

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Mech & Aerosp Engn Clear Water Bay Hong Kong Peoples R China;

    Peking Univ Beijing 100871 Peoples R China;

    AVIC Aerodynam Res Inst Harbin 150001 Peoples R China;

    AVIC Aerodynam Res Inst Harbin 150001 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Anechoic wind tunnel; Aeroacoustics; Trailing edge noise;

    机译：Anechoic风洞;空气声学;尾部噪声;

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