Cfd simulation of inter-flat air cross-contamination-A possible transmission path of infectious diseases

Xiaoping Liu, Jianlei Niu, Naiping Gao, Marco Perino, Per Heiselberg

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)


The objective of this study is to investigate the possible transmission mechanism of inter-flat air cross-contamination under the condition of single- sided natural ventilation. In high-rise residential building with flush windows on the same side, the air pollutants can diffuse from lower flat to adjacent upper flat in the vertical direction related to the inter- flat air flow through open windows caused by the temperature difference between the indoor air and the air outside of the windows. Based on the validation of CFD models with experimental data given by Heiselberg, the renormalization group (RNG) based k-ε model, together with Carbon dioxide (CO2) used as a tracer, is chosen to reveal this air cross- contamination. Different effects of contamination spread into upper room were evaluated through kinds of cases performed in various conditions. The numerical results demonstrate this possible transmission path.
Original languageEnglish
Title of host publicationIBPSA 2007 - International Building Performance Simulation Association 2007
Number of pages7
Publication statusPublished - 1 Dec 2007
EventBuilding Simulation 2007, BS 2007 - Beijing, China
Duration: 3 Sept 20076 Sept 2007


ConferenceBuilding Simulation 2007, BS 2007


  • CFD simulation
  • Cross contamination
  • High-rise residential building
  • Single-sided natural ventilation

ASJC Scopus subject areas

  • Computer Science Applications
  • Building and Construction
  • Architecture
  • Modelling and Simulation


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