Wind action and temperature difference effects on the ventilation rate and internal pressure of two communicating low-rise buildings.

Presents an analytical model for the prediction of ventilation rates, internal pressures and temperatures as influenced by the combined effects of heat dissipation inside industrial buildings and natural wind action. The model inputs are external pressure distribution, pressure drop coefficients of theopenings and thermal conductance of the walls and roof assumed to be knownfrom experimental data. A simple example is worked out. It consists of a two span long building, equipped with a natural ventilation system and divided into two internal spaces differently heated. The results emphasize the relative importance of thermal and dynamic variables, including wind incidence and the role of the opening in the internal partition wall.