Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Evaluation of Hydrodynamic Performances for New Amphibious Assault Vehicles by Using CFD

CFD를 이용한 차기 상륙돌격장갑차의 유체역학적 성능 평가

  • Jang, Jaeyeong (Defense Research & Development Center, Hanwha Landsystems) ;
  • Kim, Keunhyong (Defense Research & Development Center, Hanwha Landsystems) ;
  • Lee, Jongjin (Defense Research & Development Center, Hanwha Landsystems)
  • 장재영 (한화지상방산 개발센터) ;
  • 김근형 (한화지상방산 개발센터) ;
  • 이종진 (한화지상방산 개발센터)
  • Received : 2017.07.14
  • Accepted : 2018.01.12
  • Published : 2018.02.01
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Abstract

The Republic of Korea Marine Corps is planning to develop a new amphibious assault vehicle which is able to operate with higher water speed than current KAAV. In order to achieve a higher water speed for hydrodynamically bulff-body vehicles, it is essential to develop drag reduction strategies. In this paper, resistance characteristics including trim angles of amphibious assault vehicles with several appendage designs are investigated using a commercial CFD code, STAR-CCM+. The computed results are compared with experimental data conducted at the towing tank with 1:4.5 scaled model and show good correlation. Comparing with the results of bare hull, 3.4 % of hydrodynamic drag and 52 % of trim angle are reduced by the application of double angled bow flap and a hydrofoil attached at the transom.

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References

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