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Numerical Simulation for Rayleigh-Taylor Instability Using Runge-Kutta Discontinuous Finite Element Method
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Er-Yun CHEN1, Gui-Gao LE1, Da-Wei MA1, Gai-Ping ZHAO2, Ji-Yong ZHAO1, 3
Chinese Journal of High Pressure Physics | 2008, 22(3) : 269 - 274
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Chinese Journal of High Pressure Physics | 2008, 22(3): 269-274
Numerical Simulation for Rayleigh-Taylor Instability Using Runge-Kutta Discontinuous Finite Element Method
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Er-Yun CHEN1, Gui-Gao LE1, Da-Wei MA1, Gai-Ping ZHAO2, Ji-Yong ZHAO1, 3
Affiliations
  • 1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2.School of Medical Instrument, Shanghai University of Science and Technology, Shanghai 200093, China
  • 3.Changzhou Institute of Light Industry, Changzhou 213000, China
Published: 2008-09-05
Outline
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Rayleigh-Taylor instability problem is simulated by using discontinuous finite element method which is developed for Euler equations with an additional body force corresponding to the gravity. Level set method for capturing moving interfaces and ghost fluid method with Isobaric fix for disposing the interfaces are used. Through two representative numerical examples of Rayleigh-Taylor instability, it can be concluded that this method has capability to solve multi-media fluid problems including contact discontinuous, without numerical oscillation near the interface and high resolution.

Rayleigh-Taylor instability  /  discontinuous finite element  /  Level-Set method  /  ghost fluid method
陈二云, 乐贵高, 马大为, 赵改平, 赵继永. Rayleigh-Taylor不稳定性的Runge-Kutta间断有限元模拟. 高压物理学报, 2008 , 22 (3) : 269 -274 .
Er-Yun CHEN, Gui-Gao LE, Da-Wei MA, Gai-Ping ZHAO, Ji-Yong ZHAO. Numerical Simulation for Rayleigh-Taylor Instability Using Runge-Kutta Discontinuous Finite Element Method[J]. Chinese Journal of High Pressure Physics, 2008 , 22 (3) : 269 -274 .
Year 2008 volume 22 Issue 3
27
3
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Article Info
  • Receive Date:2007-08-12
  • Online Date:2026-10-30
  • Published:2008-09-05
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History
  • Received:2007-08-12
  • Revised:2007-12-23
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Affiliations
    1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    2.School of Medical Instrument, Shanghai University of Science and Technology, Shanghai 200093, China
    3.Changzhou Institute of Light Industry, Changzhou 213000, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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