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首页> 外文会议>Journal of South China University of Technology(Natural Science Edition) >Development of Generalized Prediction Methods for Flow-Generated Noise Produced by Indoor Ventilation Systems
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Development of Generalized Prediction Methods for Flow-Generated Noise Produced by Indoor Ventilation Systems

机译：室内通风系统产生的气流噪声广义预测方法的发展

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摘要

Indoor environmental quality is affected by the acoustical performance of a ventilation system and flow-generated noise is one of noise problems encountered in the system. It is important to accurately predict the flow-generated noise produced by in-duct elements at design stage because it is difficult to solve the problems after the commissioning of the system. Several works have been contributed to develop a generalized prediction method. However, most. prediction techniques are based on the data obtained from the conventional measurement methods. Instead of relying on the conventional measurement approach to the obtaining of flow and acoustical data, the author and his co-investigator(s) have recently investigated the feasibility of applying the technique of Computational Fluid Dynamics (CFD) to the prediction of flow-generated noise produced by in-duct elements. In this paper, the problems encountered in the development of the prediction methods are discussed and the recent works on the prediction of the flow-generated noise using CFD are introduced.
机译：室内环境质量受通风系统的声学性能的影响，并且流动产生的噪声是系统中遇到的噪声问题之一。在设计阶段准确预测由感应元件产生的气流产生噪声非常重要，因为在系统调试后很难解决这些问题。为开发通用的预测方法做出了一些贡献。但是，大多数。预测技术基于从常规测量方法获得的数据。作者和他的合作者最近没有依靠常规的测量方法来获取流量和声学数据，而是研究了将计算流体动力学（CFD）技术应用于预测流量产生的可行性。感应元件产生的噪声。本文讨论了预测方法开发中遇到的问题，并介绍了使用CFD预测流动产生的噪声的最新工作。

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