石油化工2012，Vol.41Issue(6)：682-687,6.
基于计算流体力学热流固耦合仿真的换热器折流板结构优化
Structure Optimization for Heat Exchanger Baffle Based on Computational Fluid Dynamics Simulation of Thermal-Fluid-Structure Coupling
摘要
Abstract
A thermal-fluid-structure coupling simulation model for shell-and-tube heat exchangers was established based on computational fluid dynamics(CFD) by a multi-physical field coupling method. The flow and heat transfer in 20 different types of shell-and-tube heat exchangers with different baffle structural parameters were simulated by the model. The CFD simulation results showed that the effects of the baffle spacing and baffle gap height on the flow and heat transfer interconnected, which showed that the single-objective optimization could not be achieved. With JF factors as the evaluation criteria of the heat exchanger performances, the baffle spacings and baffle gap heights in the shell-and-tube heat exchangers were optimized. It was put forward that under the conditions of parallel flow, inside diameter of the heat exchanger(d)200 mm and heat exchange tube length 1 140 mm, the baffle space and baffle gap height were 80 mm(the baffle number 10) and 0.3d(60 mm), respectively.关键词
换热器/折流板/热流固耦合/计算流体力学Key words
heat exchanger/ baffle/ thermal-fluid-structure coupling/ computational fluid dynamics分类
化学化工引用本文复制引用
张仂,谷芳..基于计算流体力学热流固耦合仿真的换热器折流板结构优化[J].石油化工,2012,41(6):682-687,6.基金项目
国家自然科学青年基金项目(51106106) （51106106）
国家海洋公益性行业专项项目(201005021). （201005021）
