高速气流作用下能量加载金属蜂窝板数值模拟

发布时间：2018-04-26 09:38

  本文选题：流固耦合 + 两相流　； 参考：《强激光与粒子束》2017年07期

【摘要】：数值模拟研究了高速气流作用下能量加载金属蜂窝板温度场。针对金属蜂窝典型单元,构造了蜂窝核细观导热数值计算分析模型。采用流固耦合计算方法,使用两相流模型和凝固/熔化模型模拟气流对烧蚀物的剥蚀,较完整地模拟了能量加载金属蜂窝板的物理变化过程,计算得到了金属蜂窝板的温度分布以及烧蚀形貌。结果表明两相流方法能够较全面地模拟能量加载金属蜂窝板过程中的对流换热、熔化与凝固过程以及金属液体在气流冲刷下的动力学过程,能获得较为合理的物理图像。
[Abstract]:The temperature field of metal honeycomb plates loaded with energy under the action of high velocity airflow is studied numerically. A numerical calculation and analysis model of meso thermal conductivity of honeycomb core is constructed for typical metal honeycomb elements. The two-phase flow model and solidification / melting model are used to simulate the denudation of the ablative material by using the fluid-solid coupling calculation method, and the physical change process of the metal honeycomb plate loaded with energy is simulated completely. The temperature distribution and ablation morphology of metal honeycomb plate were calculated. The results show that the two-phase flow method can fully simulate the convection heat transfer, melting and solidification process of metal honeycomb plates loaded with energy, and the kinetic process of metal liquid under air scour, and can obtain more reasonable physical images.
【作者单位】： 中国工程物理研究院流体物理研究所;
【分类号】：O35;TB383.4;TG14
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本文编号：1805460