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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Numerical Simulation of Rayleigh-Taylor...

Numerical Simulation of Rayleigh-Taylor Instability with Large Density Ratios Based on RKDG Method

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Abstract:

Rayleigh-Taylor instability problem with large density ratios is simulated by RKDG method which is developed for Euler equations with an additional body force corresponding to the gravity. The interface capturing ability of RKDG method is testified, while the density ratio (heavy to light) ranges from 3 to 20. Numerical results show that RKDG method has capability to pursue contact discontinuity in Rayleigh-Taylor instability with large density ratio. In the late stage of Rayleigh-Taylor instability problem, the contact line begins to crash, but the numerical solution is still smooth near the interface and has high resolution.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

1751-1756

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.1751

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Cite this paper

Online since:

September 2013

Authors:

Jun Wu Tian, Xiang Jiang Yuan

Keywords:

Large Density Ratio, Numerical Simulation, Rayleigh-Taylor Instability, RKDG Method

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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