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Numerical Simulation of Unsteady-State Underexpanded Jet Using Positive Schemes
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Sun-Ke ZHU1, Er-Yun CHEN2, Da-Wei MA1, Gui-Gao LE1
Chinese Journal of High Pressure Physics | 2011, 25(5) : 429 - 434
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Chinese Journal of High Pressure Physics | 2011, 25(5): 429-434
Numerical Simulation of Unsteady-State Underexpanded Jet Using Positive Schemes
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Sun-Ke ZHU1, Er-Yun CHEN2, Da-Wei MA1, Gui-Gao LE1
Affiliations
  • 1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2.School of Energy and Power Engineering, Shanghai University of Science and Technology, Shanghai 200093, China
Published: 2011-10-15
Outline
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A numerical simulation of unsteady-state underexpanded jet was carried out using second order positive schemes, which was developed to solve the axisymmetric Euler equations based on two dimensional conservation laws. Computational results indicate that the method can capture the wave structures of jet flowfields including expansion fan, incident shock, reflected shock, Mach disk, jet boundary and the triple point well. Agreements between the numerical results and experimental or existed numerical results are fairly satisfactory. It indicates that the present method has high capability in capturing shocks without numerical oscillation near discontinuous points.

computational fluid dynamics  /  gas jet  /  positive schemes  /  numerical simulation
朱孙科, 陈二云, 马大为, 乐贵高. 非定常欠膨胀射流的正格式数值模拟. 高压物理学报, 2011 , 25 (5) : 429 -434 .
Sun-Ke ZHU, Er-Yun CHEN, Da-Wei MA, Gui-Gao LE. Numerical Simulation of Unsteady-State Underexpanded Jet Using Positive Schemes[J]. Chinese Journal of High Pressure Physics, 2011 , 25 (5) : 429 -434 .
Appendix
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Year 2011 volume 25 Issue 5
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Article Info
  • Receive Date：2010-05-04
  • Online Date：2026-11-02
  • Published：2011-10-15
Article Data
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History
  • Received：2010-05-04
  • Revised：2010-09-30
Funding
Affiliations
    1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    2.School of Energy and Power Engineering, Shanghai University of Science and Technology, Shanghai 200093, 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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