NDLI: Ideal gas flows with separation zones and time-dependent contact discontinuities of complicated shape

Content Provider	Springer Nature Link
Author	Kraiko, A. N. P’yankov, K. S.
Copyright Year	2006
Abstract	Some examples of flows with separation zones andmovable contact discontinuities obtained as a result of the numerical integration of the time-dependent equations for an ideal gas are presented. The examples concern a steady annular separation zone on the blunt nose of a body in a supersonic flow, periodic shedding of unsteady discontinuities from a cylinder in a steady uniform subsonic flow with a supercritical Mach number, and the complicated deformation of a contact (tangential) discontinuity, namely, the boundaries of a two-dimensional jet, either subsonic or supersonic, flowing into a cocurrent subsonic low-velocity flow. A multiple increase in the difference grid capacity in the numerical integration of the Euler equations indicates the absence of a noticeable scheme viscosity effect in the examples calculated. The inviscid nature of the separation flows obtained is also confirmed by their well-known counterparts constructed in the ideal incompressible fluid approximation. The time-average velocity fields of the two-dimensional jet and the intensity of its sound field are in reasonable agreement with the available data.
Starting Page	708
Ending Page	724
Page Count	17
File Format	PDF
ISSN	00154628
Journal	Fluid Dynamics
Volume Number	41
Issue Number	5
e-ISSN	15738507
Language	English
Publisher	Kluwer Academic Publishers-Consultants Bureau
Publisher Date	2006-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ideal gas numerical integration of Euler equations closed separation zones movable contact discontinuities time-dependent structure and acoustic field of a two-dimensional supersonic jet Mechanics, Fluids, Thermodynamics Mechanics Fluids Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Fluid Flow and Transfer Processes Physics and Astronomy Mechanical Engineering

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