高温换热器多场耦合数值模拟研究  

Research on Multi-field Coupling Numerical Simulation of High Temperature Heat Exchangers

作　　者：王尊策[1] 何宝林[1] 韩建荒[1] 李森[1] 李君书[1] 

机构地区：[1]东北石油大学机械科学与工程学院

出　　处：《化工机械》2013年第2期188-192,共5页Chemical Engineering & Machinery

基　　金：石油装备制造业创新技术服务平台建设(2012BAH28F03);国家自然科学基金项目(11172061)

摘　　要：建立了高温换热器流动和传热的数值模型,对5种不同工况条件下的换热器进行了数值模拟,得到换热器的流动和传热特性;在ANSYS软件中建立换热器管束三维有限元模型,通过ANSYS CFX-POST准确的将前面FLUENT计算得到的温度场、压力场映射到ANSYS结构模型中,对换热器进行多场耦合分析;通过热-结构应力分析,得到换热器管束的等效应力和位移分布状况,并确定了最大应力发生的位置和具体数值,对换热器进行强度评价。The numerical model for the high temperature heat exchanger was established to simulate its flow and heat transfer characteristics at five working conditions;A finite element analysis model for the heat exchanger’s bundle was built in ANSYS model,and through ANSYS CFX-POST,both temperature and pressure field simulated in FLUNT were accurately mapped to ANSYS structure model to analyze the heat exchanger with multi-field coupling method;Through analyzing thermal-structural stress,both equivalent stress and displacement distribution of heat exchanger’s bundle was determined,including the maximum stress’s location and its value so as to evaluate heat exchanger’s strength.

关 键 词：换热器 传热 数值模拟 耦合分析 

分 类 号：TQ051.5[化学工程]