液态泡沫铝合金泡孔长大与析液过程的数值模拟

doi:10.3969/j.issn.1671-7775.2010.054.012

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Abstract A mathematical model for predicting the evolution of bubble size distribution was presented, which took into account of the effects of both the coarsening due to gas diffusion between bubbles and the liquid drainage. A bubble size distribution equation and a one-dimensional drainage equation were solved coupled by a finite difference approach. Comparison with experimental results from the literature shows a reasonable agreement. The model predictions indicate that the bubble size increases exponentially with time which is in good agreement with MacPherson＇s theory. Further computational results reveal that bubble size distributions are dependent strongly on the drainage behavior, the Henry constant, gas diffusivity and surface tension of the aluminum foam in liquid state.

Key words： foamed aluminum')" href="#">foamed aluminum drainage')" href="#">drainage bubble size distribution')" href="#">bubble size distribution porosity ')" href="#">porosity polyhedron')" href="#">polyhedron

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	Xie Maozhao
	Li Ke

Cite this article:

Xie Maozhao,Li Ke. Numerical simulation of bubble size distribution of aluminum foams in liquid state[J]. Journal of JIangsu University(Natural Science Eidt, 2010, 31(4): 427-431.

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http://zzs.ujs.edu.cn/xbzkb/EN/10.3969/j.issn.1671-7775.2010.054.012 OR http://zzs.ujs.edu.cn/xbzkb/EN/Y2010/V31/I4/427

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