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湍流是一种复杂的非稳态流动,在湍流中,流体的各种物理参数,如速度、压力、温度等都随时间与空间发生随机的变化,但这些量的统计平均值却是有规律的。对于流速小于0.3马赫的流场,可以视为不可压缩流动。文章运用fluent软件计算了某型飞行器的流场,给出了流场计算结果,为后续继续研究气动力及由此所引起的其他动力学问题打下了一定的基础。
Turbulence is a complicated unsteady flow. In turbulent flow, various physical parameters of fluid, such as velocity, pressure and temperature, change randomly with time and space, but the statistical average of these quantities is regular of. For flow velocities less than 0.3 Mach, it can be considered incompressible flow. The article uses fluent software to calculate the flow field of a certain type of aircraft and gives the calculation results of the flow field, laying a solid foundation for further research on aerodynamic forces and other dynamic problems caused by them.