基于Flowmaster的雷达阵面管网1D-3D流动传热联合仿真

1D-3D Flow and Heat Transfer Simulation of Radar Liquid Cooling Network System Based on Flowmaster

为研究某雷达阵面管网系统的流量分配,采用1D-3D联合仿真方法对阵面进行流动与传热仿真。首先采用一维系统级仿真软件Flowmaster对阵面进行一维建模,并通过三维仿真软件FloEFD对水接头以及冷板组件进行详细的流动仿真,获得其流量-流阻变化关系,并将结果带入Flowmaster软件中得到拟合曲线,定义一维模型各元件参数进行阵面流动与传热仿真计算,实现1D-3D联合仿真。结果表明,经优化后的阵面各支路流量差异低于1.5%,且阵面温度分布均匀。文中还研究了插拔组件对阵面流量分配的影响,各支路流量差异低于2%。通过1D-3D联合仿真研究,可以实现高精度流量分配并获得直观的阵面详细仿真结果,并且大大节省了计算时间与研发成本,对今后雷达阵面流量分配设计具有重要的参考价值。

Theflow and heat transfer simulation is carried out for the radar array with 1D-3D co-simulation method to investigate theflow distribution of a radar liquid cooling network system.The one-dimensional radar array model is built by one-dimensional simulation software Flowmaster.Theflow rate-pressure difference results are obtained by detailedflow characteristics simulation of water joint and cold plates with three-dimensional software FloEFD.The results are brought into Flowmaster to obtain thefitting curves.The 1D-3D co-simulation is conducted by defining the different component’s parameters of the radar network system.The results show that theflow difference of each branch of the optimized array is less than 1.5%and the temperature distribution of the network is even.The effect of pulling out components onflow distribution is also studied.It is found that theflow difference of each branch of the network is less than 2%after the network components are pulled out.Through 1D-3D co-simulation,accurateflow distribution can be achieved,the detailed simulation results of the network can be intuitively obtained and the computing time and research costs are greatly saved.This co-simulation method provides reference for radar networkflow distribution design in the future.