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Understanding and more accurate simulation of the oscillation airflow are important to aerosolized therapy. To assure the power of simulation by analytical method, in this paper, we present an effective computational method of finite element analysis to compared with the results obtained by an analytical expression in a Fourier series-based form which is presented by S. Kongnuan and J. Pholuang in their previous work. The finite element analysis is implemented by using the commercial software, COMSOL Multiphysics 3.5a. The airflow fields at different times of each breathing period by both methods are simulated and then compared. The comparative of the results from both methods show a good agreement and agree to the fact of the airflow in a human airway and other related publications. AMS Subject Classification: 65M60, 76D05, 92B05, 97M60

A COMPARATIVE OF ANALYTICAL AND NUMERICAL SIMULATIONS FOR THE OSCILLATING AIRFLOW IN A HUMAN ORAL AIRWAY