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Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations
- Publisher
- Springer Journals
- Copyright
- Copyright © 2019 by The Korean Society for Aeronautical & Space Sciences
- Subject
- Engineering; Aerospace Technology and Astronautics; Fluid- and Aerodynamics
- ISSN
- 2093-274X
- eISSN
- 2093-2480
- DOI
- 10.1007/s42405-019-00196-z
- Publisher site
- See Article on Publisher Site
Abstract
The Korea Aerospace Research Institute (KARI) is developing the Korea space launch vehicle (KSLV)-II for a flight test in 2021, and it has already produced the test launch vehicle (TLV) for a performance test of the 75 tonf liquid engine that will be used in the KSLV-II for the first time. The TLV utilizes, with slight changes, the same parts of the KSLV-II to avoid development delays and reduce development costs. In this study, the aerodynamic coefficients are predicted through a CFD analysis of the TLV with the umbilical plate used at the beginning of its development, and the flow characteristics around the umbilical plate are analyzed. In addition, we calculate the control ratio, which is the design requirement of the control system, using the predicted aerodynamic coefficients and investigated the effect of the umbilical plate mounted on the aft body of the TLV on its longitudinal stability. This study presents the aspects to be considered in the design of the umbilical plate and control system of a low aspect ratio launch vehicle.
Journal
International Journal of Aeronautical & Space Sciences – Springer Journals
Published: Jul 17, 2019