细长前锥段超空泡航行器高速入水的载荷数值模拟

摘要

以具有细长前锥段的超空泡航行器为计算对象,利用动网格技术进行数值模拟,获得高速入水过程中的冲击过载,分析不同入水速度、通气与否时入水冲击过载的变化规律.研究表明通气可以有效地降低轴向过载,但对于法向过载,降载若使用通气方法,还须考虑空化器直径.%A model with cone-shaped segment has slender was chosen to be studied in this paper. The impact load of the model was gained in the high-speed water-entry process, through the dynamic mesh technology, and the rule of the im-pact load are gained in the condition that vent or not at different velocity. The result shows that the axial load can be reduced effectively by ventilation, but for normal load, load shedding also need consider the diameter of the cavitator.