应急发射时不同射阀芯结构内流场对比分析.PDF

24 5 鱼 雷 技 术 Vol. 24 No. 5 2016 10 TORPEDO TECHNOLOGY Oct. 2016 DOI: 10.11993/j.issn.1673-1948.2016.05.014 应急发射时不同发射阀芯结构内流场对比分析 陈炜彬, 王贤明, 段 浩, 王 云 ( 705 , , 650118) 摘 要: , FLUENT 3 , - , , , 关键词: ; ; ; 中图分类号: TJ635; TH134 文献标识码: A 文章编号: 1673-1948(2016)05-0390-06 Analysis on Internal Flow Fields in Different Launch Valve Core Structures in Emergent Launching Condition CHEN Wei-bin, WANG Xian-ming, DUAN Hao, WANG Yun (Kunming Branch of the 705 Research Institute, China Shipbuilding Corporation, Kunming 650118, China) Abstract: A program-controlled valve, which can complete launch mission in emergent condition, is vital to ensure successful launching of a torpedo in war. To explore whether the valve core can keep good launching quality in emergent conditions, the finite element simulation software FLUENT is employed to simulate the internal flow fields in three kinds of valve core structures. Contrast analysis show that the double trapezoidal-double rectangular valve core structure can effectively reduce the loss during energy going through the valve core, hence enhance launching quality. This re- search may provide a reference for further optimization of transient energy injection and control as well as reduction of transient noise during launching process. Keywords: torpedo; program-control valve; emergency launching; internal flow field 0 引言