Comparison of Airflow and Pollutant Dispersion in Multi-room Buildings under Different Cross-Ventilation Patterns

  • Xiangxiang Lv
  • Xiaoping LiuEmail author
  • Mei Wu
  • Zhen Peng
Conference paper
Part of the Environmental Science and Engineering book series (ESE)


The leakage of hazardous gases in the building environment poses a significant threat to the health and even life safety of indoor personnel. It is essential to fully understand the whole process of indoor contaminant dispersion—from source emission, transmission route, to the potential risk of personal exposure. In order to alleviate the harm caused by pollutant leakage to indoor personnel and explore the most effective way to minimize the exposure risk, the airflow pattern and pollutant dispersion features under different ventilation paths were studied in this paper by applying the tracer gas method. The experiment was conducted in a scaled multi-room chamber (1:2). A wind wall system was designed and used to simulate the naturally ventilated environments. Wind velocities at selected key positions which represent the characteristics of multi-room flow field were measured. The concentration distribution was obtained and the possible transmission route of air pollutant was analyzed.


Pollutant dispersion Tracer gas Natural ventilation 



This work is supported by National Key R&D Program of China (No. 2018YFC0810600)


  1. 1.
    Klepeis, N.E., Nelson, W.C.: The national human activity pattern survey (NHAPS): a resource for accessing exposure to environment pollution. J. Expo. Anal. Environ. Epidemiol. 11(3), 231–252 (2001)CrossRefGoogle Scholar
  2. 2.
    Zhang, W., Chen, Q.: Large eddy simulation of indoor airflow with a filtered dynamic subgrid scale. Int. J. Heat Mass Transf. 43(17), 3219–3231 (2000)CrossRefGoogle Scholar
  3. 3.
    Jiang, Y., Alexander, D.: Natural ventilation in buildings: measurement in a wind tunnel and numerical simulation with large-eddy simulation. J. Wind Eng. Ind. Aerodyn. 91(3), 331–353 (2003)CrossRefGoogle Scholar
  4. 4.
    Chang, T.J., Hsieh, Y.F.: Numerical investigation of airflow pattern and particulate matter transport in naturally ventilated multi-room buildings. Indoor Air 16(2), 136–152 (2006)CrossRefGoogle Scholar
  5. 5.
    van Hooff, T., Blocken, B.: CFD evaluation of natural ventilation of indoor environments by the concentration decay method: CO2 gas dispersion from a semi-enclosed stadium. Build. Environ. 61, 1–17 (2013)CrossRefGoogle Scholar
  6. 6.
    King, M.F., Gough, H.L.: Investigating the influence of neighbouring structures on natural ventilation potential of a full-scale cubical building using time-dependent CFD. J. Wind Eng. Ind. Aerodyn. 169, 265–279 (2017)CrossRefGoogle Scholar
  7. 7.
    Katayama, T., Tsutsumi, J., Ishii, A.: Full-scale measurements and wind tunnel tests on cross-ventilation. J. Wind Eng. Ind. Aerodyn. 44(1–3), 2553–2562 (1992)CrossRefGoogle Scholar
  8. 8.
    Larsen, T.S., Heiselberg, P.: Single-sided natural ventilation driven by wind pressure and temperature difference. Energy Build. 40(6), 1031–1040 (2008)CrossRefGoogle Scholar
  9. 9.
    Kao, H.M., Chang, T.J.: Comparison of airflow and particulate matter transport in multi-room buildings for different natural ventilation patterns. Energy Build. 41(9), 966–974 (2009)CrossRefGoogle Scholar
  10. 10.
    Liu, X.P., Niu, J.L.: Investigation of indoor air pollutant dispersion and cross-contamination around a typical high-rise residential building: wind tunnel tests. Build. Environ. 45(8), 1769–1778 (2010)CrossRefGoogle Scholar
  11. 11.
    Tominaga, Y., Blocken, B.: Wind tunnel experiments on cross-ventilation flow of a generic building with contaminant dispersion in unsheltered and sheltered. Build. Environ. 92, 452–526 (2015)CrossRefGoogle Scholar
  12. 12.
    Chu, C.R., Chu, Y.H., Wang, Y.W.: An experimental study of wind-driven cross ventilation in partitioned buildings. Energy Build. 42, 667–673 (2010)CrossRefGoogle Scholar
  13. 13.
    Gilkeson, C.A., Camargo-Valero, M.A., Pickin, L.E.: Measurement of ventilation and airborne exposure risk in large naturally ventilated hospital wards. Build. Environ. 65, 35–48 (2013)CrossRefGoogle Scholar
  14. 14.
    James Lo, L., Atila, N.: Cross ventilation with small openings: Measurements in a multi-zone test building. Build. Environ. 57, 377–386 (2012)CrossRefGoogle Scholar
  15. 15.
    Uehara, K., Wakamatsu, S., Ooka, R.: Studies on critical Reynolds number indices for wind-tunnel experiments on flow within urban areas. Bound.-Layer Meteorol. 107(2), 353–370 (2003)CrossRefGoogle Scholar
  16. 16.
    EPA, U.S.: Exposure Factors Handbook (1997)Google Scholar
  17. 17.
    Gao, N.P.: The airborne transmission of exposure between flats in high-rise residential buildings: tracer gas simulation. Build. Environ. 43, 1805–1817 (2008)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Xiangxiang Lv
    • 1
  • Xiaoping Liu
    • 1
    Email author
  • Mei Wu
    • 1
  • Zhen Peng
    • 1
  1. 1.College of Civil EngineeringHefei University of TechnologyHefeiChina

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