Flow-induced noise and vibration problems of tube bundles in heat-exchangers exist for a long time and often cause severe destruction, performance reduction and large maintenance charge. It is essential to study the flow-induced noise in tube bundles and develop high-efficiency noise elimination measures. The theoretical analysis and numerical simulation method are coupled to compare the aerodynamic noise and heat transfer in shell-and-tube heat exchangers with continuous helical and segmental baffles. The novelty of this paper is to compare the flow-induced noise of tube bundles in shell-and-tube heat-exchangers with continuous helical and segmental baffles. And as an initial trial, this study intends to investigate the aerodynamic noise based on the flow field and acoustic field matching perspective. The results show that the sound pressure, the pressure drop per unit tube length and the Nusselt number all increase with the increase of Reynolds number. And the average synergy angle of continuous helical baffles is 11％ lower than that of segmental baffles, which corresponds with 23-37％ lower sound pressure.

换热器中管束的流动引起的噪声和振动问题已经存在很长时间，并且经常引起严重的破坏，性能下降和大量维护费用。研究管束中的流动噪声并制定高效的噪声消除措施至关重要。结合理论分析和数值模拟方法，比较了具有连续螺旋形和分段式折流板的管壳式换热器中的空气动力噪声和热传递。本文的新颖之处在于比较具有连续螺旋和分段挡板的管壳式换热器中管束的流动引起的噪声。作为初步试验，本研究旨在基于流场和声场匹配的角度研究空气动力噪声。结果表明，声压，随着雷诺数的增加，单位管长的压降和努塞尔数均增加。连续螺旋形折流板的平均协同角比分段式折流板的平均协同角低11％，相当于降低声压23-37％。