Figure 7
From: Numerical Analysis of Airway Mucus Clearance Effectiveness Using Assisted Coughing Techniques

The CE values of healthy, COPD and NMD models for different mucus film thicknesses. The CE values of healthy, COPD and NMD models are marked red, blue and green, respectively. The cough efficiencies increase with increasing mucus film thickness for the healthy, COPD and NMD models.