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정적 받음각을 갖는 초공동화 수중체에 대한 실험적 연구Experimental Study on Supercavitated Body with Static Angle-of-attack

Other Titles
Experimental Study on Supercavitated Body with Static Angle-of-attack
Authors
이준희백부근김경열김민재김선홍이승재
Issue Date
2019
Publisher
대한조선학회
Keywords
Supercavitated body(초공동화 수중체); Planing(활주); Ventilated supercavitation(환기 초공동); Immersion draft ratio(잠김 흘수비); Planing force ratio(활주력비); High-speed cavitation tunnel(고속 캐비테이션 터널)
Citation
대한조선학회 논문집, v.56, no.6, pp 541 - 549
Pages
9
Journal Title
대한조선학회 논문집
Volume
56
Number
6
Start Page
541
End Page
549
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/376
DOI
10.3744/SNAK.2019.56.6.541
ISSN
1225-1143
Abstract
In the present study, we investigated planing forces of supercavitated bodies by using the supercavitation shape produced by the disk type cavitator. The cavity shapes are observed to find the immersion draft and planing angle when the stern of the supercavitated body is partially immersed in the water. To make the planing the angle-of-attack (AOA) of the supercavitated body is varied statically against the main flow and the planing tests are carried out for different body shapes that are changed systematically. The drag, lift and pitch moment acting on the body are measured to understand the relation between the planing force and the immersion draft of the supercavitated body. It is found that the planing force increased in general linearly with the immersion draft ratio and the planing angle is certainly not proportional to the immersion draft ratio.
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지능형선박연구본부 (함정공학연구센터)
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