한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제22권3호
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  • Pages.101-109
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  • 2024
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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페이즈 필드 방법을 이용한 다상유동 경계면 추적법의 오픈소스 수치해석 코드 (OpenFOAM) 개발

Implementation of a multiphase interface tracking method using the conservative phase-field approach in the open-source OpenFOAM framework

  • Jiwan Seo (Department of Mechanical Engineering, Kyung Hee University) ;
  • Jongmin Seo (Department of Mechanical Engineering, Kyung Hee University)
  • 투고 : 2024.10.23
  • 심사 : 2024.11.10
  • 발행 : 2024.11.30
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초록

We present a novel numerical implementation of a phase-field multiphase interface tracking method within the OpenFOAM framework. Our approach solves the mass and momentum conservation equations alongside a transport equation that controls the multiphase interface thickness. Using a fractional time-stepping method, we ensure mass conservation at each time step. We extensively validated our algorithm against canonical multiphase flow problems with known analytical solutions and reference simulations with accurate interface tracking methods. Our solver demonstrated excellent interface tracking in the Rayleigh-Taylor instability problem, aligning closely with high-accuracy level-set simulations. It also accurately estimated dissipation rates in disturbed multiphase interfaces during standing wave and droplet oscillation tests. The phase-field method effectively suppressed spurious currents at the interface. Overall, our solver outperformed the standard OpenFOAM multiphase flow solver, interFoam, in terms of grid convergence and accuracy.

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과제정보

본 연구는 산업통상자원부와 한국에너지기술평가원의 에너지인력양성사업(NO. RS-2023-00244330) 지원을 받아 수행한 연구 과제이다.

참고문헌

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