The influence of Chine nose shapes on a slender body flight vehicle at high angles of attack

Title
The influence of Chine nose shapes on a slender body flight vehicle at high angles of attack
Author(s)
송동주임설[임설]김상덕[김상덕]
Keywords
TURBULENCE MODELS; VORTEX ASYMMETRY; FLOWS
Issue Date
201202
Publisher
SAGE PUBLICATIONS LTD
Citation
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING, v.226, no.G2, pp.182 - 196
Abstract
The flow characteristics of asymmetric vortices and the side force of a slender body flight vehicle with chine nose at high angles of attack have been studied using a three-dimensional upwind Navier-Stokes method with the k-omega turbulence model and a simple laminar-turbulent transition model. Asymmetrically changing turbulent viscosities that arise from asymmetric laminar-turbulent transition conditions cause asymmetric cross-flow vortex structures and side forces at higher angles of attack. However, certain type of edges may cause fixed flow separations on these edges. In this study, the chine nose shape with chine edge on its both sides is considered for the method to reduce side force. The asymmetric flow control capacity of chine nose shapes at high angles of attack is studied.
URI
http://hdl.handle.net/YU.REPOSITORY/29893http://dx.doi.org/10.1177/0954410011406630
ISSN
0954-4100
Appears in Collections:
공과대학 > 기계공학부 > Articles
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