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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.10
- 수록면
- 396 - 403 (8page)
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초록· 키워드
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The concept of an air lubrication has long been an object of attention since it can be utilized to reduce the frictional resistance, and what is more, it is eco-friendly. The present study examines the basic characteristics of an air cavity with intention of applying the air lubrication technology to the reduction of the resistance of a ship without excessive power increment. For the purpose, an air cavity was created at the bottom of a flat plate by injecting air behind a backward step and the hydrodynamic properties of the air cavity and the surrounding flow has been investigated experimentally and numerically. The influence of the step height and the air flow rate have been more carefully studied since they are presumed to be the main parameters affecting the characteristics of an air cavity. The results indicates that the shapes of the air cavities attached on the flat plate become "U" or "V" type depending on the incoming flow velocity and air flow rate. The study also confirms that the length of the air cavity increases with increase in air flow rate but there is a certain critical limit in the flow rate above which increase in the air cavity length is no more evident.
목차
Abstract
1. 서론
2. 모형시험
3. 수치 해석
4. 결과
5. 결론
후기
참고문헌
참고문헌 (14)
참고문헌 신청
1. [단행본] - Bushnell, D.M / 1990 / Viscous Drag Reduction in Boundary Layer. Progress in Astronautics and Aeronautics, 123 / The American Institute of Aeronautics and Astronautics, Inc
2. [학술대회논문] - Choi, J.K / 2005 / Design Trade-off Analysis for High Performance Ship Hull with Air Plenums / 2nd International Symposium on Seawater Drag Reduction : 1 ~ 16
3. [학술지(정기간행물)] - Driver, D.M / 1985 / Features of a Reattaching Turbulent Shear Layer in Divergent Channel Flow / AIAA Journal 23 : 163 ~ 171
4. [단행본] - / 2008 / FLUENT 6.3 user's guide / Fluent Inc
5. [학술지(정기간행물)] - Go, S.C / 1999 / On the Suitable Shape of Bottom for the Application of Air Cavity on Hull Bottom to the Practical Hull Form / Journal of the Society of Naval Architects of Korea 36 (1) : 1 ~ 7
2. [학술대회논문] - Choi, J.K / 2005 / Design Trade-off Analysis for High Performance Ship Hull with Air Plenums / 2nd International Symposium on Seawater Drag Reduction : 1 ~ 16
3. [학술지(정기간행물)] - Driver, D.M / 1985 / Features of a Reattaching Turbulent Shear Layer in Divergent Channel Flow / AIAA Journal 23 : 163 ~ 171
4. [단행본] - / 2008 / FLUENT 6.3 user's guide / Fluent Inc
5. [학술지(정기간행물)] - Go, S.C / 1999 / On the Suitable Shape of Bottom for the Application of Air Cavity on Hull Bottom to the Practical Hull Form / Journal of the Society of Naval Architects of Korea 36 (1) : 1 ~ 7
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UCI(KEPA) : I410-ECN-0101-2013-559-001491197