电子设备风冷系统的CAA

Q2 Physics and Astronomy

Advances in Acoustics and Vibration Pub Date : 2016-01-01 DOI:10.1155/2016/4785389

Sven Münsterjohann, J. Grabinger, S. Becker, M. Kaltenbacher

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引用次数: 1

摘要

本文介绍了用于电子设备的空气冷却系统的流体力学和气动声学模拟的工作流程和结果。该装置代表了一个通用的电子设备，具有几个电子组件，通过两个轴流风扇强制对流冷却。采用混合方法计算气动声学性能。首先，采用非定常剪切应力输运模型(URANS-SST)和剪切应力输运模型(SAS-SST)进行了两种非定常CFD模拟。基于非定常流动结果，采用Lighthill声学类比法计算了声源项。用有限元法计算了流致声的传播。最后，将声学模拟结果与实测结果进行了比较，结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CAA of an Air-Cooling System for Electronic Devices

This paper presents the workflow and the results of fluid dynamics and aeroacoustic simulations for an air-cooling system as used in electronic devices. The setup represents a generic electronic device with several electronic assemblies with forced convection cooling by two axial fans. The aeroacoustic performance is computed using a hybrid method. In a first step, two unsteady CFD simulations using the Unsteady Reynolds-Averaged Navier-Stokes simulation with Shear Stress Transport (URANS-SST) turbulence model and the Scale Adaptive Simulation with Shear Stress Transport (SAS-SST) models were performed. Based on the unsteady flow results, the acoustic source terms were calculated using Lighthill’s acoustic analogy. Propagation of the flow-induced sound was computed using the Finite Element Method. Finally, the results of the acoustic simulation are compared with measurements and show good agreement.

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来源期刊

Advances in Acoustics and Vibration ACOUSTICS-

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期刊介绍： The aim of Advances in Acoustics and Vibration is to act as a platform for dissemination of innovative and original research and development work in the area of acoustics and vibration. The target audience of the journal comprises both researchers and practitioners. Articles with innovative works of theoretical and/or experimental nature with research and/or application focus can be considered for publication in the journal. Articles submitted for publication in Advances in Acoustics and Vibration must neither have been published previously nor be under consideration elsewhere. Subject areas include (but are not limited to): Active, semi-active, passive and combined active-passive noise and vibration control Acoustic signal processing Aero-acoustics and aviation noise Architectural acoustics Audio acoustics, mechanisms of human hearing, musical acoustics Community and environmental acoustics and vibration Computational acoustics, numerical techniques Condition monitoring, health diagnostics, vibration testing, non-destructive testing Human response to sound and vibration, Occupational noise exposure and control Industrial, machinery, transportation noise and vibration Low, mid, and high frequency noise and vibration Materials for noise and vibration control Measurement and actuation techniques, sensors, actuators Modal analysis, statistical energy analysis, wavelet analysis, inverse methods Non-linear acoustics and vibration Sound and vibration sources, source localisation, sound propagation Underwater and ship acoustics Vibro-acoustics and shock.