人工因素对海面稀氧区特性影响的数值仿真  

Numerical Simulation of the Influence of Artificial Factors on Anoxic Area Over Sea Surface Characteristics

作　　者：刘文鹏[1,2] 金良安 蒋晓刚[1,2] 苑志江 LIU Wen-peng;JIN Liang-an;JIANG Xiao-gang;YUAN Zhi-jiang(Navigation Department,Dalian Naval Academy,Dalian Liaoning 116018,China;Military Navigation Army Key Laboratory,Dalian Liaoning 116018,China)

机构地区：[1]海军大连舰艇学院航海系,辽宁大连116018 [2]军事航海军队重点实验室,辽宁大连116018

出　　处：《计算机仿真》2019年第9期10-14,26,共6页Computer Simulation

基　　金：“十三五”国防预研项目(30203010303);海军国防预研课题(401040301)

摘　　要：基于海面稀氧区这一新型对舰防御技术的形成原理,利用k-ε模型对其形成过程进行了数值仿真,获得了浓度云图分布及其形成、持续时间,研究了气体种类、释放速率和出口宽度这三种人工因素对海面稀氧区特性的具体影响。结果表明,相较于C2H2,由CO和N2形成的稀氧区范围更大,所需时间更短,持续时间更长;随着释放速率的增加,稀氧区的形成时间增加,持续时间增加,有效范围的高度和下风向长度显著增加,但增幅减缓;随着出口宽度的增大,稀氧区形成时间减少,持续时间减少,有效范围出现波动,在下风向缩小转而向高空扩展。As a new type of ship defense technology,based on the formation principle of anoxic area over sea surface,its formation process was numerically simulated with k-epsilon turbulence model.Concentration cloud distribution,formation and duration time were obtained,furthermore,the influence of three artificial factors of gas species,release rate and outlet width on anoxic area over sea surface characteristics was studied specifically.The results show that compared with C2H2,the anoxic area formed by CO and N2 is larger,the formation time is shorter and duration time is longer.With the increase of release rate,the formation time of anoxic area increases,the duration time increases,the height and downwind length of effective range increase significantly,but the growth slows down.With the increase of outlet width,the formation time and duration time decrease,and the effective range fluctuates,shrinking in downwind direction but extending to high altitude.

关 键 词：计算流体力学 数值仿真 海面稀氧区 人工因素 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]