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COMPARISONS OF PREDICTIONS WITH NUMERICAL BENCHMARK TEST NO. 2.5: KELVIN-HELMHOLTZ INSTABILITY

卷 6, 册 1-4, 1992, pp. 639-651
DOI: 10.1615/MultScienTechn.v6.i1-4.330
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摘要

Predictions obtained using four computer codes are compared with the analytical solution for Kelvin-Helmholtz instability for the conditions specified in Numerical Benchmark Test No. 2.5 (D. L. Youngs, Multiphase Science and Technology, Vol. 3, pp.477−479, 1987). There are considerable differences in the predictive instability growth between various codes. These results were given which showed that, with too fine a nodalisation, rapid growth of the instability occurs with numerical damping failing to stop the growth at high wave number instabilities.

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