Abstract
Air temperature has a significant influence on the dynamic properties of pipes supplied with pulsating flows. In many applications (power plants, pipelines, intake and exhaust systems for internal combustion engines), air temperature has an effect on resonance. Depending on the air temperature and its influence on transient flow parameters (pressure, temperature, density, speed of sound), there may be significant changes in the dynamic properties of the test pipe, such as resonant frequencies and the damping coefficient. In this study, experiments were conducted in an air temperature range of between 288 and 343 K, with a very a short air temperature step of around 5 K. Each measurement series was performed in triplicate. The results were processed in the Matlab environment using Fast Fourier Transforms. The empirical coefficients were visualized as 3D maps, including the influence of air temperature on pulsation dynamics in pipes. Finally, the experimental results were compared with the author’s 1D model (based on the method of characteristics). The results are significant both for the theoretical understanding of flows in pipelines with pulsating flows and for practical applications in industry..
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The author gratefully acknowledges the helpful comments and suggestions of the reviewers, which have improved the manuscript.
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Pałczyński, T. (2018). Influence of Air Temperature on Dynamic Properties of Pipes Supplied with Pulsating Flow. In: Awrejcewicz, J. (eds) Dynamical Systems in Applications. DSTA 2017. Springer Proceedings in Mathematics & Statistics, vol 249. Springer, Cham. https://doi.org/10.1007/978-3-319-96601-4_26
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DOI: https://doi.org/10.1007/978-3-319-96601-4_26
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