• OpenAccess
  • Characteristic size research of human nasal cavity and the respiratory airflow CFD analysis  [iCBBE 2012]
  • DOI: 10.4236/jbm.2013.12006   PP.23 - 27
  • Author(s)
  • Jun Zhang
  • To study the airflow distribution in human nasal cavity during respiration and the characteristic parameters for nasal structure, thirty three-dimensional, anatomically accurate representations of adult nasal cavity models were reconstructed based on processed tomography images collected from normal people. The airflow fields in nasal cavities were simulated using the fluid dynamics with the finite element software ANSYS. The results showed that the difference of human nasal cavity structure led to varying airflow distribution in the nasal cavities and the main airflow passed through the common nasal meatus. The nasal resistance in the regions of nasal valve and nasal vestibule accounted for more than a half of overall resistance. The characteristic model of nasal cavity was extracted based on the characteristic points and dimensions deducted from the original models. It showed that either the geometric structure or the air-flow field of the two kinds of model was similar. The characteristic dimensions were the characteristic parameters of nasal cavity that properly represented the original model in research for nasal cavity.

  • Nasal Cavity; Characteristic Dimension; Three-Dimensional Reconstruction; Numerical Simulation of Flow Field; Computational Fluid Dynamic; Finite Element Method
  • References
  • [1]
    Uliyanov, Y.P. (1997) Surgical reconstruction of nasal serodynamics. Proceedings of 16th World Congress of Otolaryngology Head and Neck Surgery, XVI World Congress of Otolaryngology Head and Neck Surgery, Sydney, 1591-1595.
    Liu, Y.X., Yu, S., Sun, X.Z., et al. (2005) Structure of nasal cavity and characters of airflow. Chinese Journal of Otolaryngology Head and Neck Surgery, 40, 846-849.
    Keyhani, K., Scherer, P.W. and Mozell, M.M. (1995) Numerical simulation of airflow in the human nasal cavity. Journal of Biomechanical Engineering, 117, 429-441.
    Hahn, I., Scherer, P.W., Mozell, M.M., et al. (1993) Velocity profiles measured for airflow through a large scale model of he human nasal cavity. Journal of Applied Physiology, 75, 2273-2287.
    Martonen, T.B., Quan, L., Zhang, Z., et al. (2002) Flow simulation in the human upper respiratory tract. Cell Biochemistry and Biophysics, 37, 27-36.
    Subramaniam, R.P., Richardson, R.B. and Morgan, K.T. (1998) Computational fluid dynamics simulations of inspiratory airflow in the human nose and nasopharynx. Inhalation Toxicology, 10, 91-120.
    Kim, S.K. and Chung, S.K. (2004) An investigation on airflow in disordered nasal cavity and its corrected models by tomographic PIV. Measurement Science and Technology, 15, 1090-1096.
    Reimersdahl, Th., Hörschler, I. and Gerndt, A. (2001) Air-flow simulation inside a model of the human nasal cavity in a virtual reality based rhinological operation planning system. International Congress Series, 1230, 87-92.
    H?rschler, I., Meinke, M. and Schr?der, W. (2003) Nu- merical simulation of the flow field in a model of the nasal cavity. Computers & Fluids, 32, 39-45.
    Guitong, Y., Weiyi, C. and Jinbin, X. (1999) Biome-chanics. Chongqing Press, Chongqing.
    Keyhani, K. and Scherer, P.W. (1995) Numerical simulation of airflow in the human nasal cavity. Journal of Bio-mechanical Engineering, 117, 429-441.
    Ulyanov, Y.P. (1998) Clinical manifestations the variants of nasal aerodynamics. Otolaryngology Head and Neck Surgery, 119, 152-153.

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