Three-dimensional transient simulation of effects of air pressure, temperature and wind on radon transport

Three-dimensional transient process of transport of indoor radon has been imitated with numerical differential method, and effects of air pressure, temperature and wind have been quantitatively discussed. The calculation results show that the radon concentration indoors is decreased with the height increasing, and while the air pressure, temperature and wind outside the room change, the pressure differences and radon concentrations indoors will change too, but their phase differences are more than 180 degree. The experimental proved the measured results consistent with the calculation