A semi-implicit and unconditionally stable approximation of the surface tension in two-phase fluids
- 주제(키워드) Surface tension , Navier-Stokes equation , Two-phase flow , Unconditionally stable method , Energy stability
- 주제(기타) Computer Science, Interdisciplinary Applications
- 주제(기타) Physics, Mathematical
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- 발행기관 ACADEMIC PRESS INC ELSEVIER SCIENCE
- 발행년도 2019
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000161549
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.jcp.2019.07.028
초록/요약
We focus on the energy conservation of two-phase fluids, where the change in kinetic energy is balanced by the gravitational potential and the surface energy related to surface tension. We introduce an unconditionally stable approximation in the sense that the total energy does not increase with any time step. An analysis is presented to prove the unconditional stability property of the scheme, and numerical results are given to confirming the analysis. (C) 2019 Elsevier Inc. All rights reserved.
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