EVALUATING THE SHAPING OF PEDESTRIAN STREETS OF ROW HOUSES IN FAYUM DESERT VILLAGE IN EGYPT AS A CASE STUDY | ||||
| Journal of Urban Research | ||||
| Article 8, Volume 25, Issue 1, July 2017, Page 129-136 PDF (483.74 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jur.2020.88133 | ||||
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| Author | ||||
| Amaal Aldeberky | ||||
| Architecture dep., Fine Art College, Minia University | ||||
| Abstract | ||||
| Because air flow is required in hot climates, even when the air temperature is reaching 40⁰ C, in order to reduce the thermal stress for pedestrians and reduce their sweat under the intensive solar radiation during the overheated period (Givoni B. 1998) [1]. And the theoretical studies of Golany, G. (1980) [2], show that zigzag streets enhance air flow through the compact urban pattern, where air pressure and air vortex spread by the edges of buildings' blocks and enhance the air flow that decreases air temperature in pedestrian streets. Thus, The paper presents field measurements -using a thermos-anemometer- for air temperature and velocity through traditional and formal row houses urban pattern, in order to measure the effect of urban morphology – staggered blocks, zigzag streets and orientation – in achieving air flow and air temperature at the pedestrian level. Also, numerical simulation (using Ansys software program) was done to verify the effect of zigzag streets that are located at the wind shadow area in activating air flow through the row house urban pattern. Measurements have been in Fayum Oasis (latitude 29 ⁰ N), in which there is calm and a hot air flow pattern. Results proved that zigzag streets activate the air flow through the row house fabric in general, and through the wind shadow area by about 10-50 % of the local free wind speed. | ||||
| Keywords | ||||
| Row houses urban pattern; Narrow bended street; Zigzag street; CFD (Computational Fluid Dynamic) | ||||
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