螺旋桨对潜艇热尾流浮升规律影响的数值模拟  

Numerical study of the influence of the propeller on the buoyancy law of submarine thermal wake

作　　者：王保霖 杜永成[1] 张泽华 吴霆锋 杨立[1] WANG Baolin;DU Yongcheng;ZHANG Zehua;WU Tingfeng;YANG Li(Academy of Power Engineering, Naval University of Engineering, Wuhan 430033, China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033

出　　处：《哈尔滨工程大学学报》2022年第5期673-680,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(11504426).

摘　　要：为了研究螺旋桨对潜艇热尾流浮升过程的影响,本文采用有限体积法建立了带桨潜艇三维物理数学模型。利用3套独立的网格,结合重叠网格技术实现螺旋桨、潜艇各自的真实运动。数值模拟结果表明:螺旋桨转动可使2束温热水汇聚,加速温热水与背景水域的掺混,使热尾流的宽度和温度均匀性增加,从而抑制热尾流的浮升。To analyze the influence of propeller on the buoyancy process of submarine thermal wake,a three-dimensional physical and mathematical model of a submarine with a propeller is established by the finite volume method.In combination with the overset grid technology,this study realizes the real motion of the propeller and submarine using three sets of independent grids.The numerical results indicate that the rotating propeller can converge two bundles of warm water and accelerate the mixing of warm water and background water,which increases the width and temperature uniformity of the thermal wake,thereby restraining the buoyancy of the thermal wake.

关 键 词：热尾流 螺旋桨 重叠网格 浮升扩散 潜艇 有限体积法 温度场 热尾流中心 

分 类 号：O357[理学—流体力学]