Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Validation of Chimera Grid Method Applied to UMSAPv With Prediction of Carriage Load

장착하중 예측을 통한 UMSAPv에 적용된 중첩 격자 기법 검증

  • Kang, SeonWook (Department of Aerospace Engineering, Inha University) ;
  • Ahn, Kyehyun (Department of Aerospace Engineering, Inha University) ;
  • Lee, Seungsoo (Department of Aerospace Engineering, Inha University)
  • Received : 2021.12.30
  • Accepted : 2022.08.29
  • Published : 2022.10.01
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Abstract

In this paper, the carriage load analyses of stores installed on aircraft are conducted to validate the chimera grid method applied to an unstructured CFD solver, UMSAPv. First, the chimera grid method of UMSAPv is verified for the well-known Eglin Wing/Pylon/Finned store problem. Next, an angle of attack sweep of F/A-18C clean configuration is conducted at a subsonic speed. The computed results are compared with the results of the previous study using MSAPv, a structured CFD solver, to show the validity of Umsapv. Finally, the carriage of F/A-18C JDAM is carried out with a chimera grid as well as a single block grid. The computed results are compared with other computational, experimental and the flight tests.

본 논문에서는 비정렬 CFD 해석자 UMSAPv에 적용된 중첩 격자 기법의 검증을 위하여 항공기에 장착된 store의 장착하중을 구하였다. 먼저, 잘 알려진 Eglin Wing/Pylon/Finned store 문제에 대해 UMSAPv의 중첩 격자 기법을 검증하였다. 다음으로 F/A-18C clean 형상에서 대하여 받음각에 따른 아음속 유동해석을 수행하였다. 계산 결과를 정렬 CFD 해석자인 MSAPv을 사용한 선행연구결과와 비교하여 Umsapv의 해석능력을 검증하였다. 마지막으로 F/A-18C/JDAM의 장착하중은 중첩 격자와 단일 격자로 수행하였다. 계산된 결과는 다른 CFD결과, 실험 및 비행시험과 비교하였다.

Keywords

Acknowledgement

이 논문은 한국항공우주학회 2021 추계학술대회에서 발표한 바 있습니다. 이 논문은 인하대학교의 지원을 받아 수행된 연구로 이에 감사드립니다.

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