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Bubble Behavior on a Solidification Front

The study uses the Phase-field method to simulate the bubble behavior of liquid-solid interface in the solidification.The flow use the mass equation,momentum equation,and energy equation for simulating the variation of bubble. This pattern considers that three-phase of solid, liquid,and gas coexist with the different density and viscosity coefficient,and the external force considers surface tension and the gravity force. In addition,the mass transfer also can¡¦t neglect around interface. The result discuss the production of pore when the velocity of solidification is fast,but bubble leaves when the velocity of solidification is slow.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0720110-160215
Date20 July 2010
CreatorsLin, Sih-Min
ContributorsLee, Ming-San, Fei-Bin Hsiao, Jang, Jiin-Yuh, Han-Taw Chen, Wei, Peng-Sheng
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0720110-160215
Rightsunrestricted, Copyright information available at source archive

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