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[학술저널]

  • 학술저널

정소원(한국해양과학기술원) 박상태(충남대학교) 안병권(충남대학교)

DOI : 10.3744/SNAK.2019.56.4.327

이 논문을 2019-08-28 에 이용했습니다. 저작권자 요청에 따라 무료로 제공되는 논문입니다. 로그인 후 이용하실 수 있습니다.

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초록

Recently, there has been a growing interest in artificial supercavitation as a way to reduce friction drag of submerged vehicles. A cavitator plays an important role to generate the supercavity, so many studies have focused on the case of cavitator only. However, the body shape behind the cavitator affects the growth of the supercavity and this effect must be considered for evaluating the overall performance of the system. In this work, we conducted experimental investigation on artificial supercavitation generated by different combinations of the cavitator and body. We observed the supercavity pattern by using a high-speed camera and measured the pressure inside the cavity by using an absolute pressure transducer. We estimated the relation between the amount of injected air and the supercavity shape for different combinations. In summary, the disk type cavitator generates larger supercavity than that of the cone and ellipsoidal cavitators, but cavity development speed is relatively slower rather than the others. Furthermore, fore body angle plays an important role to generate the supercavity enveloping the entire body.

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1. 서론
2. 실험 장치 및 모형
3. 실험 결과
4. 결론
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