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在PHOENICS软件基础上开发了模拟激光表面重熔过程温度场和速度场的数值程序 ;温度场和速度场的计算采用了固定网格及处理熔化和凝固问题的一般源项方法 ;移动热源引起的能量和动量变化分别作为附加源项构建控制方程组 ,采用控制容积积分法对控制方程进行离散和求解 ;对铝合金激光表面重熔过程中的传热、相变及流体流动问题进行了三维非稳态的数值模拟研究。
On the basis of PHOENICS software, a numerical program was developed to simulate the temperature field and velocity field of laser surface remelting process. The calculation of temperature field and velocity field adopted the general source method of fixed grid and the problem of melting and solidification. Energy and momentum changes as the additional source of the formation of control equations, the use of control volume integral method for discretization and control equations; laser surface remelting aluminum alloy heat transfer, phase transition and fluid flow problems were three-dimensional Study of steady state numerical simulation.