temperature, wet bulb

[AIVC, Air infiltration and ventilation glossary, 1992]:air temperature indicated by a sensing element kept wet (usually by a wick), the indicated temperature thus being related to the rate of evaporation from the wetted bulb. This Wet Bulb Temperature is used Continue reading →

terrain roughness

[AIVC, Air infiltration and ventilation glossary, 1992]:the character of the terrain over which wind passes upstream of a building, causing the wind velocity to be modified. It is common practice to characterise terrain according to roughness and express the variation Continue reading →