应用计算流体力学能比较精确地预测换热器壳侧稳态和非稳态流场，解释因流体流动而发生的诱导振动问题和由于温差而引起的热应力问题，这有助于换热器的结构设计，使换热器性能达到最优。介绍了国内外管壳式换热器壳侧流场研究现状、发展趋势及其存在的问题。 The application of computational fluid dynamics (CFD) to predict more accurately the steady-state and unsteady flow fields in the shell of the heat exchanger explains the induced vibration problems due to fluid flow and the thermal stress due to temperature differences, which helps the heat exchanger The structural design, so that the best performance of the heat exchanger. The research status, development trend and existing problems of shell-side flow field in shell-and-tube heat exchangers at home and abroad are introduced.