侧向风下航母甲板风涡流场的模拟研究

采用低马赫数假设下的气流运动控制方程组和湍流大涡模拟方法,研究在侧向来风条件下,航母甲板风涡流场的特点。在侧向来风时,航母前部甲板上方压强时均值、变化幅度与周期差异不大;后部甲板上方压强时均值较前半部分略有增加,变化幅度和周期均有所增大。

Simulated study to wind deck vortex flow of aircraft carriers under cross wind

The control equations with the hypothesis of low Mach air flow and the large eddy simulation method oftur-bulent flows are used to study the characteristics of vortex in the wind over deck of aircraft carriers under the condition of cross wind. The time-averaged value, the variety scope and the variety period of pressures in the region over the former deck are near invariable. The time-averaged value, the variety scope and the variety period of pressures in the region over the tail deck are little larger than that at the former deck.