Influence of Asymmetric Transition Conditions on a Slender-Body Flight Vehicle

Title
Influence of Asymmetric Transition Conditions on a Slender-Body Flight Vehicle
Author(s)
송동주임설[임설]김상덕[김상덕]
Issue Date
201001
Publisher
AMER INST AERONAUT ASTRONAUT
Citation
JOURNAL OF SPACECRAFT AND ROCKETS, v.46, no.6, pp.1117 - 1123
Abstract
The flow characteristics of asymmetric vortices and the side force of a tangent-ogive-cylinder flight vehicle at high angles of attack have been studied by using a three-dimensional upwind Navier-Stokes method with the k-omega turbulence model and a simple laminar-turbulent transition model. Various patterns of asymmetric vortices and side forces are studied by using various asymmetric laminar-turbulent transition conditions. Asymmetrically changing turbulent viscosities that arise from asymmetric laminar-turbulent transition conditions cause asymmetric crossflow vortex structures and side forces at higher angles of attack. The magnitude and structure of the crossflow vortices and side forces were sensitive to changes in the factors or the model of laminar-turbulent transition.
URI
http://hdl.handle.net/YU.REPOSITORY/23020http://dx.doi.org/10.2514/1.40665
ISSN
0022-4650
Appears in Collections:
공과대학 > 기계공학부 > Articles
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