Abstract
In the present investigation, we demonstrate the capabilities of the discontinuous Galerkin spectral element method for high order accuracy computation of gas dynamics. The internal flow field of a natural gas injector for bivalent combustion engines is investigated under its operating conditions. The simulations of the flow field and the aeroacoustic noise emissions were in a good agreement with the experimental data. We tested several shock-capturing techniques for the discontinuous Galerkin scheme. Based on the validated framework, we analyzed the development of the supersonic jets during different opening procedures of a compressed natural gas injector. The results suggest that a more gradual injector opening decreases the noise emission.
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Hempert, F., Hoffmann, M., Iben, U. et al. On the simulation of industrial gas dynamic applications with the discontinuous Galerkin spectral element method. J. Therm. Sci. 25, 250–257 (2016). https://doi.org/10.1007/s11630-016-0857-8
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DOI: https://doi.org/10.1007/s11630-016-0857-8