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Numerical study of the circular cylinder in supersonic ground effect conditions

Sugar-Gabor, O

Authors



Abstract

A numerical study of the aerodynamics of a circular cylinder section in proximity to the ground surface was performed, for Mach numbers of 1.5 and 2.9 and ground clearances between 2 and 0.125, non-dimensional with respect to the cylinder diameter. The supersonic flow was computed using a finite-volume Reynolds-averaged Navier-Stokes solver, using adequately stabilized numerical schemes. The flow field computed in ground effect conditions was complex, and significantly varied as a function of both variables. The shape and standoff distance of the detached bow shock were very sensitive to changes in ground clearance. The velocity profile in the gap between the cylinder and ground showed significant interactions between the two boundary layers, and a gradually reduced supersonic expansion close the body surface.

Citation

Sugar-Gabor, O. (2018). Numerical study of the circular cylinder in supersonic ground effect conditions. International review of aerospace engineering (CD-ROM), 11(1), https://doi.org/10.15866/irease.v11i1.13696

Journal Article Type Article
Acceptance Date Feb 6, 2018
Online Publication Date Feb 28, 2018
Publication Date Feb 28, 2018
Deposit Date Feb 12, 2018
Journal International Review of Aerospace Engineering
Print ISSN 1973-7459
Electronic ISSN 2533-2279
Volume 11
Issue 1
DOI https://doi.org/10.15866/irease.v11i1.13696
Publisher URL https://doi.org/10.15866/irease.v11i1.13696
Related Public URLs http://www.praiseworthyprize.org/jsm/index.php?journal=irease&page=index