ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

Figure 8. Figure 8(a) illustrates the measured and simulated temperature value. The
horizontal axis represents the location and the vertical axis represents temperature.
Figure 8(b) illustrates measured and simulated relative humidity value. The horizontal
axis represents the locations and the vertical axis represents relative humidity. As
compared with the measured temperature and humidity, the temperature simulated by
our previous model, is too high at the 1.6[cm] and 2.5[cm]. And, the relative humidity
simulated by our previous model is too low at the 1.6[cm] and 2.5[cm]. The result was
simulated by latent heat model using membrane thickness equals 0.5[mm] was most
agree with the measurement data of Keck et al [6].
6. Conclusion
Fig.8 Temperature and Relative Humidity Verification
We developed the nasal cavity wall model including latent heat for nasal simulation.
For the validation of nasal cavity model, the simulation results were compared with
measurement data. Consequently, the result that simulated latent heat model using of
membrane thickness equals 0.5[mm] was consistent with the measured results.
7. Reference
1. Doorly DJ et al., Mechanics of airflow in the human nasal airways, Respiratory
Physiology & Neurobiology, 2008,Vol. 163,100-110.
2. S.K Chung et al., Experimental and Numerical Study on the Nasal Airflow in Postsurgery
Model: Simulation of Nasal Surgery, IFMBE proceeding, 2010, Vol. 31
Part2, 702-705.
3. K.Kumahata et al., Nasal Simulation Using Heat and Humidity Models, Journal of
Biomechanical Science and Engineering, 2010, Vol. 5, 565-577
4. S.Miyazaki et al., JOHNS, 2000, Vol.16, No.10, 1535-1540.
5. R.R.Roger et al., A Short Course in Cloud Physics, Butterworth-Heinemann, 1989,
3 rd Edition.
6. T.Keck et al., Humidity and Temperature profile in the nasal cavity, Rhinology,
2000, Vol.38, 167-171.