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

  • 제50권6호
  • /
  • Pages.367-376
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  • 2022
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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3차원 아음속 비정렬 패널법을 이용한 정상/비정상 공력 해석 프로그램 개발

Development of Steady/Unsteady Aerodynamic Analysis Program Using 3-Dimensional Subsonic Unstructured Panel Method

  • Park, Jinyi (Department of Aerospace Engineering, Inha University) ;
  • Baek, Chung (Department of Aerospace Engineering, Inha University) ;
  • Lee, Seungsoo (Department of Aerospace Engineering, Inha University)
  • 투고 : 2021.12.30
  • 심사 : 2022.05.02
  • 발행 : 2022.06.01
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초록

본 연구에서는 정상 및 비정상 공력 해석이 가능한 3차원 아음속 비정렬 패널 프로그램을 개발하고 검증하였다. 물체의 표면을 삼각형 또는 사각형 패널에 source와 doublet의 potential을 분포하여 모델링하였다. 따라서 복잡한 형상과 다물체도 쉽게 모델링 할 수 있다. Kelvin theory와 비정상 Kutta condition을 이용하여 비정상 유동에서 wake의 doublet 크기를 결정하였다. 2차원 및 3차원에서 정상 및 비정상 유동을 해석하여 그 결과를 해석해와 기존의 수치해와 비교하였다.

In this study, a steady and unsteady aerodynamic analysis program using a 3-dimensional subsonic unstructured panel method is developed and verified. Surfaces of bodies are modeled with the source and doublet distributions on triangular or quadrilateral panels. Geometry modeling of complex geometries and multi-body, therefore, can be easily accomplished. The Kelvin theory and the unsteady Kutta condition allow the doublet strength of the wake panels determined for unsteady flows. Various steady and unsteady flows in two and three dimensions are computed and compared with the analytical and the published computational results.

키워드

과제정보

이 논문은 한국항공우주학회 2021추계학술대회에서 발표한 바 있습니다. 본 연구는 국방과학연구소의 지원으로 수행되었으며 이에 대해 깊이 감사드립니다.

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