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Fluid Dynamics

, Volume 11, Issue 3, pp 421–424 | Cite as

Mathematical simulation of Mach reflection of shock waves in media with different adiabatic indices

  • V. N. Lyakhov
Article
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Abstract

Some peculiarities of the processes of regular and Mach reflection at constant adiabatic index γ=cp/cv=1.4 were investigated theoretically in [1]. It was demonstrated that increase in incident-wave intensity above some value leads to the appearance of an internal compression discontinuity (Fig. 1) and a break in the reflected wave (at point h), both of which had been observed previously only in experiment [2–4]. In the present study the method described in [1] is used to study the influence of adiabatic index on these peculiarities of the Mach reflection process which lead to a significant increase in pressure (to a maximum value Pm) on the surface wedge in the vicinity of point i. Pressure and density curves along the wedge surface are presented. It is found that increase in γ leads to the same qualitative changes in the pressure and density curves on the surface as are observed upon increase in semiaperture angle of the wedge Β or upon decrease in Mach number Mf of the shock-wave front incident on the wedge ab. These similarities in the shock-wave reflection process were first noted in [5] for weak shock waves in which the internal compression discontinuity does not appear.

Keywords

Reflection Shock Wave Mach Number Qualitative Change Mathematical Simulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • V. N. Lyakhov
    • 1
  1. 1.Moscow

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