实验模拟了受阻塞肺下呼吸道重开的生物力学问题。呼吸道模型是玻璃直圆管 ,以具有生物流体性质的机油作为阻塞液。实验给出了在压强差作用下阻塞液柱前阵面以及穿入粘液柱气泡前阵面的位置和速度曲线。结果表明 ,它们受外加压强 ,管直径 ,阻塞液粘度以及初始阻塞液长度的影响。较高的外加压强、阻塞液粘度较低和管径较粗有利于呼吸道的重开。 Experiments simulate the biomechanics of obstructed pulmonary re-opening airways. The model of the airway is a glass straight tube, with a biofluidized oil as blocking fluid. The experimental results show the position and velocity curves of the front surface of the liquid column and the front surface of the bubble that bubbles into the mucous column under the pressure difference. The results show that they are affected by applied pressure, tube diameter, blocking solution viscosity and initial blocking solution length. Higher external pressure, lower blocking fluid viscosity and coarse diameter conducive to respiratory reopening.