基于Fluent的刺激剂储罐消涡性能优化设计  

DESIGN OF VORTEX ELIMINATION PERFORMANCE OPTIMISATION FOR STIMULANTS STORAGE TANK BASED ON FLUENT

作　　者：吴华 庄弘炜[1] 赵法栋[1] 庄维伟[1] 

机构地区：[1]武警工程大学装备工程学院,陕西西安710086

出　　处：《计算机应用与软件》2016年第1期38-41,共4页Computer Applications and Software

基　　金：国家自然科学基金项目(50876113)

摘　　要：针对刺激剂储罐排液过程中存在的漩涡问题,利用VOF和RNGK-ε二方程模型相结合的方法,在Fluent中实现对漩涡形成时流态特性的模拟分析,提出将排液口形状由圆形改为环形,进气管由底部插入的优化方案。并通过对比分析优化前后的流道结构在排液尾期的流场变化规律,得出优化方案能有效减弱漩涡的强度,保证排液过程的稳定性,减少液体剩余量的结论。因此,优化后储罐结构具有良好的消涡性能,对于提高武器的作战性能具有重要意义。Aiming at vortex problem existing in the process of stimulants storage tank drainage, by using the method of combining two equation models of VOF and RNGK - ε we achieved in Fluent the simulation analysis on flow property when the vortex is forming, and presented the optimisation scheme of moditying the drainage hole shape from round to ring and inserting the inlet pipe from bottom of the tank. Through comparative analysis of the change rule of vortex flow field of flow path structure in end period of discharge before and after optimisa- tion, we got the conclusion that the optimisation scheme can effectively weaken the strength of vortex, ensure the stability of discharge process and reduce the amount of residual liquid. Therefore, the optimised tank structure has a good performance of vortex elimination, and this has important significance for improving the operational performance of the weapon.

关 键 词：增压排液 FLUENT 数值模拟 消涡 优化设计 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置]