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논문 기본 정보

자료유형
학술저널
저자정보
Jayabal Rajasekar (Andong National University) Tae Ho Kim (Andong National University) Heuy Dong Kim (Andong National University)
저널정보
한국가시화정보학회 한국가시화정보학회지 한국가시화정보학회지 Vol.20 No.3
발행연도
2022.11
수록면
49 - 57 (9page)

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The interaction of planar shock wave with rectangular water column is investigated numerically. The flow phenomenon like reflection, transmission, cavitation, recirculation of shock wave, and large negative pressure due to expansion waves was discussed qualitatively and quantitatively. The numerical simulation was performed in a shock tube with a water column, and planar shock was initiated with a pressure ratio of 10. Three cases of the water column with different thicknesses, namely 0.5D, 1D, and 2D, were installed and studied. Water naturally has a higher acoustic impedance than air and mitigates the shock wave considerably. The numerical simulations were modelled using Eulerian and Volume of fluids multiphase models. The Eulerian model assumes the water as a finite structure and can visualize the shockwave propagation inside the water column. Through the volume of fluids model, the stages of breakup of the water column and mitigation effects of water were addressed. The numerical model was validated against the experimental results. The computational results show that the installation of a water column significantly impacts the mitigation of shock wave.

목차

Abstract
1. Introduction
2. Numerical Analysis
3. Validation
4. Results and Discussion
5. Conclusion
References

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