NDLI: The nature of the triple point singularity in the case of stationary reflection of weak shock waves

Content Provider	Springer Nature Link
Author	Vasil’ev, E. I.
Copyright Year	2016
Abstract	The structure of flow in the vicinity of a triple point in the problem of stationary irregular reflection of weak shock waves is numerically investigated within the framework of the Euler model, including the von Neumann paradox range. To improve the accuracy of the solution near singular points a new technology including a grid contracted toward the triple point and the discontinuity fitting is applied. It is shown that in the four-wave flow pattern the curvatures of the tangential discontinuity and the Mach front at the triple point are finite. The singularity is concentrated only in a sector between the reflected wave front and the expansion fan. When the three-wave flow pattern is realized, the curvatures of the tangential discontinuity and both wave fronts at the triple point are infinite. On the range of weak and moderate shock waves the logarithmic singularity in subsonic sectors near the triple point conserves up to transition to the regular reflection.
Starting Page	804
Ending Page	813
Page Count	10
File Format	PDF
ISSN	00154628
Journal	Fluid Dynamics
Volume Number	51
Issue Number	6
e-ISSN	15738507
Language	English
Publisher	Pleiades Publishing
Publisher Date	2017-01-04
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	irregular reflection triple pont von Neumann paradox logarithmic singularity discontinuity fitting Fluid- and Aerodynamics Classical and Continuum Physics Classical Mechanics Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Fluid Flow and Transfer Processes Physics and Astronomy Mechanical Engineering

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