이미지 방법을 이용한 자유 및 강체 표면 옆의맥동하는 버블 주위 속도 포텐셜 해석 Analysis of Velocity Potential around Pulsating Bubble near Free or Rigid Surfaces Based on Image Method

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An analytical method for predicting the velocity potential around a pulsating bubble close to a free or rigid wall was established using an image method. Because the velocity potential should satisfy two boundary conditions at the bubble surface and rigid wall, we investigated the velocity in the normal direction at the two boundaries by adding the image bubbles. The potential was analyzed by decomposing the bubble motion as two independent motions, pulsation and translation, and we found that when the number of image bubbles was greater than ten, the two boundary conditions were satisfied for the translation term. By adding many image bubbles after the approximation of the pulsation term, we also confirmed that the boundary condition at the wall was satisfied.
Publisher
한국해양공학회
Issue Date
2018
Language
Korean
Keywords

Bubble motion 버블운동; Image bubble 가상 버블; Velocity potential 속도 포텐셜; Pulsation 맥동; Translation 병진

Citation

한국해양공학회지, v.32, no.1, pp.28 - 35

ISSN
1225-0767
URI
http://hdl.handle.net/10203/246995
Appears in Collection
ME-Journal Papers(저널논문)
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