摘要
流固耦合现象是指流体与固体相互作用的现象,其具体表现为流体作用于固体,使之变形或位移,同时固体反作用于流体,引起流场的变化。在阀门中,当流固耦合现象达到一定程度时,会对阀门及与阀门相连的多种部件产生损伤,并最终导致阀门工作效率下降乃至失效。为更全面地认识阀门中的流固耦合现象,本文从流固耦合理论、试验方法和数值模拟3方面对国内外阀门流固的研究进行了整理归纳。首先,介绍了阀门产生流固耦合现象的机制;其次,阐释了单场分析与流固耦合分析各自的特点,指出了流固耦合分析的优越性。同时,归纳了不同试验方法及元器件在阀门流固耦合现象研究中的应用。此外,在数值模拟中,按照数据传递方向对单向流固耦合与双向流固耦合进行了介绍;并根据耦合场数,结合阀门研究的相关工作对双场耦合与多场耦合进行了介绍。最后,总结了流固耦合模拟的发展方向。
Fluid-structure interaction refers to the phenomenon of interaction between fluid and solid,which is manifested as fluid acts on solid to deform or displace it,while solid acts on fluid to cause the change of flow field.In valves,when the fluid-structure interaction phenomenon reaches a certain degree,it will damage valves and many parts connected with valves,and eventually lead to the decline of the working efficiency and even failure of valves.In order to understand the fluid-structure interaction phenomena in valves more comprehensively,the current research status at home and abroad were reviewed from the aspects of fluidstructure interaction theory,experimental method and numerical simulation.Firstly,the mechanism of fluid-structure interaction was introduced;secondly,the characteristics of single-field analysis and fluid-structure interaction analysis were explained,and the advantages of fluid-structure interaction were pointed out.At the same time,the application of different test methods and components in the research of fluid-structure interaction of valves was summarized.In addition,in the numerical simulation,according to the direction of data transmission,the unidirectional fluid-structure interaction simulation and bidirectional fluidstructure interaction simulation were introduced;according to the number of interaction fields and in combination with the related work of valve research,the double-field interaction and multi-field interaction were introduced.Finally,the development direction of fluid-structure interaction simulation was summarized.
作者
钱锦远
杨佳明
吴嘉懿
金志江
QIAN Jinyuan;YANG Jiaming;WU Jiayi;JIN Zhijiang(Institute of Process Equipment,Zhejiang University,Hangzhou 310027,China)
出处
《流体机械》
CSCD
北大核心
2021年第2期57-65,共9页
Fluid Machinery
基金
国家自然科学基金项目(51805470,51875514)
浙江省自然科学基金项目(LY20E050016)。
关键词
阀门
流固耦合
试验方法
数值模拟
valve
fluid-structure interaction
test method
numerical simulation
