原子能科学技术Issue(7)：1194-1199,6.DOI:10.7538/yzk.2014.48.07.1194
波浪管内流场与传热及阻力特性数值模拟
Numerical Study on Flow Field With Heat Transfer and Flow Resistance in Wavy Tube
摘要
Abstract
The heat transfer and pressure drop characteristics of wavy tube heat exchanger were investigated numerically with commercial computation software Fluent . Different turbulence models and near-wall treatments were studied ,and the results were compared with experimental data to determine the most appropriate scheme for simula-ting the hydrodynamics and heat transfer in wavy tube heat exchanger .On the basis of this ,further studies on the structure of flow field and the heat transfer characteristics of wavy tube were done .It can be concluded that RNG k-εmodel combined with enhanced wall treatment gives the closest result to the experimental date compared to other schemes .Compared to the straight tube ,it can be seen that the increase of the heat transfer coefficient and the frictional coefficient is substantial in low Re w hile small in high Re ,and the positions with the highest heat transfer coefficient and the highest pressure drop are both located at the junction of arc segments ,w here curvature changes direction .The simulation results can support the future study on design and optimiza-tion of the enhanced heat transfer tubes .关键词
强化传热/波浪管/数值模拟Key words
heat transfer enhancement/wavy tube/numerical study分类
能源科技引用本文复制引用
蔡报炜,王建军..波浪管内流场与传热及阻力特性数值模拟[J].原子能科学技术,2014,(7):1194-1199,6.基金项目
核安全与仿真技术国防重点学科实验室基金资助项目（HEUFN1307）；国家自然科学基金资助项目 （）
