URBAN FACADE GEOMETRY ON OUTDOOR COMFORT CONDITIONS: A REVIEW

Elahe Mirabi, Nasrollahi Nazanin

Abstract


Designing urban facades is considered as a major factor influencing issues
such as natural ventilation of buildings and urban areas, radiations in the
urban canyon for designing low-energy buildings, cooling demand for
buildings in urban area, and thermal comfort in urban streets. However, so
far, most studies on urban topics have been focused on flat facades
without details of urban layouts. Hence, the effect of urban facades with
details such as the balcony and corbelling on thermal comfort conditions
and air flow behavior are discussed in this literature review. Aim: This
study was carried out to investigate the effective factors of urban facades,
including the effects of building configuration, geometry and urban
canyon’s orientation. Methodology and Results: According to the results,
the air flow behavior is affected by a wide range of factors such as wind
conditions, urban geometry and wind direction. Urban façade geometry
can change outdoor air flow pattern, thermal comfort and solar access.
Conclusion, significance and impact study: In particular, the geometry of
the facade, such as indentation and protrusion, has a significant effect on
the air flow and thermal behavior in urban facades and can enhance
outdoor comfort conditions. Also, Alternation in façade geometry can
affect pedestrians' comfort and buildings energy demands.


Keywords


Solar access; SVF; Thermal comfort; UHI; Urban facades

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DOI: http://dx.doi.org/10.25105/urbanenvirotech.v4i1.7151

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