| Evaluation of Hydrodynamic Performances for New Amphibious Assault Vehicles by Using CFD |
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Jaeyeong Jang, Keunhyong Kim, Jongjin Lee |
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Defense Research & Development Center, Hanwha Landsystems |
| CFD를 이용한 차기 상륙돌격장갑차의 유체역학적 성능 평가 |
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장재영, 김근형, 이종진 |
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한화지상방산 개발센터 |
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| Abstract |
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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. |
| Key Words:
Amphibious Assault Vehicle, Hydrofoil, Bow Flap, Resistance Test, CFD |
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