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蒸发水包结构简单,成本较低,是重要的吊舱环控系统部件之一。在蒸发水包的流阻研究中,需要一种简单可行的仿真方案。文中将多孔介质方法引入蒸发水包流阻的仿真研究中,并以单个细长管路为对象,划分结构化网格,找出流阻与速度的关系,将其引入整体模型当中。最后通过对3种简化模型的分析对比,选择更为合理的模型进行数值计算。该方案不仅很好地反映了实际的流通情况,更减少了网格数量,使得蒸发水包的仿真简单可行。
Evaporation water bag structure is simple, low cost, is one of the important components of the pod loop control system. In the study of flow resistance of evaporative water packs, a simple and feasible simulation scheme is needed. In this paper, the porous medium method is introduced into the simulation study of the flow resistance of the evaporative water bag. The single slender pipeline is used as the object to divide the structured grid and find out the relationship between the flow resistance and the velocity, which is introduced into the overall model. Finally, by comparing and analyzing the three simplified models, a more reasonable model is selected for numerical calculation. The scheme not only reflects the actual circulation well, but also reduces the number of grids, making the simulation of evaporative water packs simple and feasible.