한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2009년 추계학술대회논문집
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- Pages.218-222
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- 2009
Level-Set 방법을 이용한 비등현상 해석
NUMERICAL SIMULATION OF BOILING PHENOMENA USING A LEVEL-SET METHOD
초록
A level-set (LS) method is presented for computation of boiling phenomena which involve liquid-vapor interfaces that evolve, merge and break up in time, the flow and temperature fields influenced by the interfacial motion, and the microlayer that forms between the solid and the vapor phase near the wall. The LS formulation for tracking the phase interfaces is modified to include the effects of phase change on the liquid-vapor interface and contact angle on the liquid-vapor-solid interline. The LS method can calculate an interface curvature accurately by using a smooth distance function. Also, it is straightforward to implement for two-phase flows in complex geometries. The numerical method is applied for analysis of nucleate boiling on a horizontal surface and film boiling on a horizontal cylinder.