针对盘状连续油管参数设计不恰当，可能会导致压力波传输信号衰减较大，试验系统运行效果差等问题。利用FLUENT软件建立了盘状连续油管的三维模型，就压力波衰减比值开展了模拟与试验结果的验证，得到了有效的数值模型，开展了盘状连续油管结构参数和工况参数对压力波传输性能的影响研究。揭示了盘状连续油管内压力波传输规律，并基于最小二乘法，进行了三次多项式拟合，得到了结构和工况参数与压力波传输衰减率的对应关系。最后通过改进WOA-BP神经网络建立了盘状连续油管的压力波传输衰减预测模型，测试最大的绝对误差为0.29%。研究结果可为长距离水循环试验系统的结构设计和现场应用提供理论指导。

Due to inappropriate design parameters of the disc-shaped continuous tubing, pressure wave transmission signal attenuation may be larger, and the running effect of the test system may be poor. A three-dimensional model of the disc-shaped continuous tubing was established using the FLUENT software, and the simulation and experimental results were verified for the pressure wave attenuation ratio. An effective numerical model was obtained, and the influence of the structural and operational parameters of the disc-shaped continuous tubing on pressure wave transmission performance was studied. The pressure wave transmission law within the disc-shaped continuous tubing was revealed, and a third-order polynomial was fitted using the least squares method, obtaining the corresponding relationship between the structural and operational parameters and the pressure wave transmission attenuation rate. Finally, an improved WOA-BP neural network was established to predict the pressure wave transmission attenuation of the disc-shaped continuous tubing, with the maximum absolute error of 0.29%. The research results can provide theoretical guidance for the structural design and on-site application of long-distance water circulation test systems.