Thermal analysis near secondary injection hole in sitvc system

Jiwoon Song, Jong Ju Yi, Tae Hwan Kim, Man Sun Yu, Hyung Hee Cho, Ju Chan Bae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The advantages of the Secondary Injection Thrust Vector Control (SITVC) system over conventional thrust vector systems include reduced weight and complexity due to the elimination of the mechanical actuators that are used in the vectoring and increased thrust by secondary injection. However, a strong bow shock at the ahead of the secondary jet is generated by the complex 3-dimensional flow field. The boundary layer/shock wave interaction results in boundary separation shock wave as well as strong recirculation flow including reattachment flow. As a result, local heat transfer is highly concentrated around the secondary injection hole. This could cause to thermal damage to the nozzle surface thus making difficult to maintain the system performance. Therefore, investigate the change of the flow field caused by the boundary layershock wave interference regarding secondary injection is requisite to thermal design. The momentum ratio and the injection angle of the secondary flow are as a parameter in this work. In this study we study the characteristics of the flow and heat transfer using numerical simulation, oil and lampblack method and Infrared thermography (IRT).

Original languageEnglish
Title of host publication28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
Pages2887-2891
Number of pages5
Publication statusPublished - 2012 Dec 1
Event28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 - Brisbane, Australia
Duration: 2012 Sep 232012 Sep 28

Publication series

Name28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
Volume4

Other

Other28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
CountryAustralia
CityBrisbane
Period12/9/2312/9/28

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

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  • Cite this

    Song, J., Yi, J. J., Kim, T. H., Yu, M. S., Cho, H. H., & Bae, J. C. (2012). Thermal analysis near secondary injection hole in sitvc system. In 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 (pp. 2887-2891). (28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012; Vol. 4).