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Assessment of the a...
Assessment of the acoustic scattering matrix of a heat exchanger using ssCFD-LNSE simulation
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- Ganji, Hamed F. (författare)
- Department of Mechanical Engineering, Eindhoven University of Technology, the Netherlands
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- Kornilov, Viktor (författare)
- Department of Mechanical Engineering, Eindhoven University of Technology, the Netherlands
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- van Oijen, Jeroen (författare)
- Department of Mechanical Engineering, Eindhoven University of Technology, the Netherlands
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visa fler...
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- Lopez Arteaga, Ines (författare)
- KTH,Teknisk mekanik,Department of Mechanical Engineering, Eindhoven University of Technology, the Netherlands
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visa färre...
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(creator_code:org_t)
- The Institute of Noise Control Engineering of the USA, Inc. 2022
- 2022
- Engelska.
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Ingår i: Internoise 2022. - : The Institute of Noise Control Engineering of the USA, Inc..
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The risk of thermoacoustic instability is present in any combustion appliance. The instability results from a closed loop feedback between unsteady combustion, heat-transfer and acoustic modes of the system. To predict the system acoustics, all constituting elements of the appliance need to be modelled. A heat-exchanger is a element where the gas faces complex fluid dynamics and heat transfer processes. Therefore, modelling of (thermo)-acoustic properties of a heat exchanger is challenging. In this paper, a computational approach is proposed to characterize the acoustic properties of a generic heat exchanger in both laminar and turbulent flow regimes. A hybrid Computational Fluid Dynamics - Computational Aero-Acoustics (CFD-CAA) method is used based on the linearized Navier-Stokes equation, called ssCFD-LNSE. The core idea in this approach is to efficiently model acoustic wave propagation with inclusion of mean flow and temperature fields. ssCFD-LNSE is performed by splitting the quantities of the total field into a mean part (obtained from CFD) and a (acoustic) perturbation part modelled within the LNSE solver. The goal of this research is to assess the two-port acoustic scattering matrix of an array of tubes, as a generic model of a heat-exchanger, with a hot cross flow.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
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