A computational methodology for effective bioclimatic-design applications in the urban environment

Stavrakakis, GM; Tzanaki, E; Genetzaki, VI; Anagnostakis, G; Galetakis, G; Grigorakis, E

dc.contributor.author	Stavrakakis, GM	en
dc.contributor.author	Tzanaki, E	en
dc.contributor.author	Genetzaki, VI	en
dc.contributor.author	Anagnostakis, G	en
dc.contributor.author	Galetakis, G	en
dc.contributor.author	Grigorakis, E	en
dc.date.accessioned	2014-03-01T02:07:14Z
dc.date.available	2014-03-01T02:07:14Z
dc.date.issued	2012	en
dc.identifier.issn	22106707	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29530
dc.subject	Bioclimatic design	en
dc.subject	Bioclimatic maps	en
dc.subject	Computational Fluid Dynamics	en
dc.subject	Evapotranspiration	en
dc.subject	Thermal comfort	en
dc.subject	Urban Heat Island	en
dc.title	A computational methodology for effective bioclimatic-design applications in the urban environment	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.scs.2012.05.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.scs.2012.05.002	en
heal.publicationDate	2012	en
heal.abstract	In the present paper a computational methodology for assessing and improving the microclimate in the urban environment is developed. A Computational Fluid Dynamics (CFD) model is described, which accounts for the evaporation occurring on water surfaces as well as the evapotranspiration from plant surfaces and tree foliage. Solar radiation and wind effects are also taken into account. Additionally, thermal comfort indices are implemented in the model, hence local information is provided regarding thermal sensations (bioclimatic maps). Surface temperature and air temperature at pedestrian level, are also used to characterize the microclimate. The methodology is demonstrated by means of a case study, which refers to the area of Gazi in Greece. Initially, the model is applied for simulating the airflow pattern throughout the domain of interest. The numerical results reveal the problematic areas in terms of thermal discomfort and wind effects. Based on that information advanced bioclimatic techniques are suggested to reduce severe heat stresses and to eliminate these areas. The effectiveness of the architectural interventions is tested by estimating the microclimate-indices differences compared to the existing conditions. It is concluded that the proposed methodology serves adequately for applying effective bioclimatic strategies to mitigate the Urban Heat Island (UHI) effect. © 2012 Elsevier B.V.	en
heal.journalName	Sustainable Cities and Society	en
dc.identifier.doi	10.1016/j.scs.2012.05.002	en
dc.identifier.volume	4	en
dc.identifier.issue	1	en
dc.identifier.spage	41	en
dc.identifier.epage	57	en