TY - EJOU AU - Shen, Dongkai AU - Zhang, Qian AU - Wang, Yixuan AU - Ge, Huiqing AU - Luo, Zujin TI - Dimensionless Study on Secretion Clearance of a Pressure Controlled Mechanical Ventilation System with Double Lungs T2 - Computer Modeling in Engineering \& Sciences PY - 2018 VL - 114 IS - 2 SN - 1526-1506 AB - A pressure controlled mechanical ventilator with an automatic secretion clearance function can improve secretion clearance safely and efficiently. Studies on secretion clearance by pressure controlled systems show that these are suited for clinical applications. However, these studies are based on a single lung electric model and neglect the coupling between the two lungs. The research methods applied are too complex for the analysis of a multi-parameter system. In order to understand the functioning of the human respiratory system, this paper develops a dimensionless mathematical model of double-lung mechanical ventilation system with a secretion clearance function. An experiment is designed to verify the mathematical model through comparison of dimensionless experimental data and dimensionless simulation data. Finally, the coupling between the two lungs is studied, and an orthogonal experiment designed to identify the impact of each parameter on the system. KW - Dimensionless system KW - mechanical ventilation KW - secretion clearance KW - double lungs KW - pressure control DO - 10.3970/cmes.2018.114.117