Wind-induced ground-surface pressures around a single-family house

Non-Uniformity of the Indoor Radon Concentration under a Convective Mixing Mechanism

“…However, the experimental observations and results of recent computational fluid dynamics (CFD) research papers [2,6,7] demonstrate that radon concentration in living areas might markedly deviate from average values. Herewith, it is also worth including in the analysis of the entire process those studies focusing on the modeling of the impact of the external environment (i.e., atmospheric values such as air wind velocity, permeability as a characteristic of soil) on radon entry into houses [8,9]. The variety and interplay of different factors affecting the level of radon concentration in living areas motivate researchers to further scrutinize the details of the phenomena.…”

“…The objective of this paper is to present the application of CFD techniques to study the effect of such factors as air exchange rates and airtightness of enclosing structures on the concentration of radon indoors. Herewith, we created a model of the house of the same shape and size as in [8,9] in order to employ the outcomes of a detailed study of the impact of the wind-induced entry of radon into the house with a specified geometry. Riley et al [8,9] in their study considered this house as a ‘solid body’ object when they targeted the pressures and flow streamlines in the surrounding soil; we added the windows, simplified interior structures, and suggested the existence of cracks between the floor and walls.…”

“…We included a wind velocity of 8.3 m∙s −1 in this case, which induced about 11 Pa of the soil–house pressure drop [8,9].…”