【摘要】 本文建立了含有小雷诺数对流项的晶核生长的数学物理模型,利用摄动方法对数学模型进行了详细地分析,研究了熔体的小雷诺数对流对球状晶核生长的影响.结果分析表明,在强加来流作用下球状晶界面不再稳定,而是沿远场来流方向进行演化.更多还原

【Abstract】 A mathematical and physical model with a term of the small Reynolds convection is established to describe the growth of a spherical crystal nucleus.By using the asymptotic analysis method,the small Reynolds convection effect,which is growth of a spherical crystal nucleus,is studied.The results obtained in this paper show that the spherical crystal interface is unstable and evolves along the direction of the far field flow.更多还原