Analysis of Ventilation Efficiency and Effective Ventilation Flow Rate for Wind-driven Single-sided Ventilation Buildings

Natural ventilation can be categorized into single-sided and cross-ventilation. Based on the air flow mechanism of a wind-driven natural ventilation, effective rates in buildings are different from through openings. The mixing coefficient or efficiency is defined by ratio these rates, indicating ventilating ability similar to effect penetration depth fresh air. This paper provides detailed analysis effectiveness building with single opening based numerical simulations. simulation was validated study an existing case. By calculation, openings were compared. Effects various influencing parameters, such as wind speed, location, area aspect windward wall evaluated. An estimated has been established modelling, which would beneficial for predication short-circuit rate