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Sustainability 2015, 7(3), 3109-3128; doi:10.3390/su7033109

Modeling Thermal Comfort and Optimizing Local Renewal Strategies—A Case Study of Dazhimen Neighborhood in Wuhan City

1
School of Architecture and Urban Planning, Huazhong University of Science and Technology, Wuhan 430074, China
2
School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
3
School of Science and the Environment, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
4
Center for ITS & UAV Applications Research, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
5
Department of Urban and Regional Planning, University of Florida, Gainesville, FL 32607, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 18 December 2014 / Revised: 20 February 2015 / Accepted: 28 February 2015 / Published: 13 March 2015
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Abstract

Modeling thermal comfort provides quantitative evidence and parameters for effective and efficient urban planning, design, and building construction particularly in a dense and narrow inner city, which has become one of many concerns for sustainable urban development. This paper aims to develop geometric and mathematical models of wind and thermal comfort and use them to examine the impacts of six small-scale renewal strategies on the wind and thermal environment at pedestrian level in Dazhimen neighborhood, Wuhan, which is a typical case study of urban renewal project in a mega-city. The key parameters such as the solar radiation, natural convection, relative humidity, ambient crosswind have been incorporated into the mathematical models by using user-defined-function (UDF) method. Detailed temperature and velocity distributions under different strategies have been compared for the optimization of local renewal strategies. It is concluded that five rules generated from the simulation results can provide guidance for building demolition and reconstruction in a neighborhood and there is no need of large-scale demolition. Particularly, combining the local demolition and city virescence can both improve the air ventilation and decrease the temperature level in the study area. View Full-Text
Keywords: sustainable urban renewal; wind and thermal comfort; geometric and mathematical models; CFD; inner city; Wuhan sustainable urban renewal; wind and thermal comfort; geometric and mathematical models; CFD; inner city; Wuhan
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Peng, C.; Ming, T.; Cheng, J.; Wu, Y.; Peng, Z.-R. Modeling Thermal Comfort and Optimizing Local Renewal Strategies—A Case Study of Dazhimen Neighborhood in Wuhan City. Sustainability 2015, 7, 3109-3128.

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