轴流风机湍流入流模型的气动声学模拟

IF 1.3 Q2 ENGINEERING, AEROSPACE

International Journal of Turbomachinery, Propulsion and Power Pub Date : 2023-04-18 DOI:10.3390/ijtpp8020013

P. Dietrich, Marc Schneider

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引用次数: 1

摘要

在应用中，风扇的声学效果可能与独立风扇的测量结果有很大的不同。这是由于流入条件受到干扰，例如，由轴流风机上游的热交换器引起的。在气动声学尺度解析模拟中，求解典型换热器复杂的几何形状和尺寸导致了非常高的计算量，目前在经济上是不可行的。湍流重建工具，如FRPM，提供了模拟湍流流入条件的可能性，从而避免了在气动声学模拟中对热交换器的表示。该方法在带有上游湍流网格的导管风机的基准实验中得到了验证。

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Aeroacoustic Simulations of an Axial Fan with Modelled Turbulent Inflow Conditions

In applications, the acoustics of fans can differ significantly from the measurements of the standalone fan. This is due to disturbed inflow conditions, for example, caused by a heat exchanger upstream of an axial fan. Resolving the complex geometry and dimensions of typical heat exchangers in aeroacoustic scale-resolving simulations leads to a very high computation effort, which is currently not economically feasible. Turbulence reconstruction tools, such as the FRPM, provide the possibility to model the turbulent inflow conditions, thereby avoiding the representation of the heat exchanger in the aeroacoustic simulations. This approach is tested on a benchmark experiment of a ducted fan with an upstream turbulence grid.

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来源期刊

International Journal of Turbomachinery, Propulsion and Power Engineering-Aerospace Engineering

CiteScore

2.30

自引率

21.40%

发文量

审稿时长

11 weeks