化工进展2011，Vol.30Issue(10)：2131-2140,10.
管壳式换热器壳程流动与传热的数值模拟与验证
Numerical simulation and verification on performance of fluid flow and heat transfer in shell-passage of shell ＆ tube heat exchanger
郭崇志 1林桥1
作者信息
- 1. 华南理工大学机械与汽车工程学院,广东广州510640
- 折叠
摘要
Abstract
In order to make up the drawback of small gap modeling and analysis in current shell tube heat exchanger numerical simulation on fluid flow and heat transfer,the full fluid flow and heat transfer mode,which contains the main flow stream of B,C and small leakage flow stream of A and E,is developed by the simulation method of ＂segmented modeling and comprehensive synthesis＂ that successfully incorporate the small leakage flow stream of A and E paths.The full fluid flow and heat transfer mode are consistent with the actual heat exchanger.The fluid flow and heat transfer is studied in the segmentation model by using CFD software;and the influence of these flow passages in the baffle space on the fluid flow and heat transfer are also discussed.Data of local flow and heat transfer from numerical simulation are further processed comprehensively to get the integrated correlation performance of heat transfer and pressure drop in heat exchanger.The numerical results are compared with several famous formulas,such as method of Donohue,Kern,Bell-Delaware and Flow Stream Analysis.It is shown that the simulation results are well agreed with Bell-Delaware and Flow Stream Analysis Method,the maximum deviation is less than 20%.关键词
管壳式换热器/流动与传热/数值模拟/Bell-Delaware/流路分析Key words
shell ＆ tube heat exchanger/fluid flow and heat transfer/numerical simulation/Bell-Delaware/flow stream analysis分类
化学化工引用本文复制引用
郭崇志,林桥..管壳式换热器壳程流动与传热的数值模拟与验证[J].化工进展,2011,30(10):2131-2140,10.
