摘要
[目的]为优化和比较海水自流循环系统中关键部件的多种设计方案,需建立一种能对自流循环系统流量进行快速计算的方法。[方法]采用RANS方法结合SST k-ω湍流模型开展某艇海水自流循环系统的数值模拟。用体积力代替主要部件进行数值分析,提出一种利用系统特性曲线与部件性能曲线求交点的方法确定海水自流循环系统的流速点。[结果]通过比较体积力法与部件实体加艇体的联合计算方法得到的工况点,验证了体积力法计算的准确性,从而确定了海水自流循环系统的流速;体积力法较实体联合计算法更简便、计算量更小,更适用于系统部件的多方案仿真分析。[结论]体积力法可简化数值仿真计算,可为预报实艇海水自流循环系统的流速和流量提供参考。
[Objectives]Establish a method capable of quickly calculating the flow velocity of an artesian circulating system,in order to optimize and compare multiple design schemes for key components of the sea water artesian circulating system.[Methods]Numerical simulation of the sea water artesian circulating system of a ship is done by using the RANS method and the SST k-ωturbulence model.Body force is used instead of main components to do numerical analysis.A method for finding the intersection point by using system characteristic curve and component performance curve is proposed,to identify the flow velocity points of sea water artesian circulating system.[Results]By comparing the operating condition points obtained by the body force method with those obtained by the component-hull combined calculation method,the calculation accuracy of body force is verified,so as to determine the flow velocity of the sea water artesian circulating system.The body force method is more convenient and less computationally intensive than the combined calculation method,therefore the body force method is more suitable for multi-scheme simulation analysis on system components.[Conclusions]The body force method can simplify the numerical simulation calculation and provide a reference for predicting the flow velocity and flow of the artesian circulating system of the ship.
作者
陈康
姚志崇
周恩东
夏彬
Chen Kang;Yao Zhichong;Zhou Endong;Xia Bin(State Key Laboratory of Deep-sea Manned Vehicles,Wuxi 214082,China;China Ship Scientific Research Center,Wuxi 214082,China)
出处
《中国舰船研究》
CSCD
北大核心
2019年第5期70-76,共7页
Chinese Journal of Ship Research
关键词
自流循环系统
体积力法
数值模拟
artesian circulating system
body force method
numerical simulation
