Title

透水面積比例對環境微氣候之影響:以中興新村南核心區為例

Translated Titles

The Effects of Environmental Micro-climates due to the Area of Pervious Pavement in the Southern Zone of the Jhong Sing Village

DOI

10.6128/CP.39.3.297

Authors

邱英浩(Yin-Hao Chiu)

Key Words

街道尺度 ; 計算流體力學 ; 植栽孔隙率 ; 透水鋪面 ; Street aspect ratio ; Computational fluid dynamics ; Tree porosity ; Pervious pavement

PublicationName

都市與計劃

Volume or Term/Year and Month of Publication

39卷3期(2012 / 09 / 01)

Page #

297 - 326

Content Language

繁體中文

Chinese Abstract

中興新村係以英人霍華德的花園城市(garden city)概念規劃,為臺灣戰後第一個參考歐美新市鎮型態而建設的住宅社區,目前政府計畫將中興新村轉型為高等研究園區,同時落實生態城市概念,規劃中預計以科學方法慎重的處理區域內之風環境,本研究以中興新村為案例,利用計算流體力學(CFD, computational fluid dynamics)進行環境分析,並以實際量測都市風場、植栽風速衰減趨勢以及透水鋪面熱通量作為CFD之驗證,針對「街道尺度」、「透水鋪面百分比」以及「植栽」等環境變因對環境微氣候的影響探討,以模擬運算結果進行分析,並回饋至生態城市的綜合規劃流程中,部份研究結果可知,當透水面積比例達60%以上時,周邊硬鋪面表面溫度可降低約1℃,透水鋪面表面溫度則可降3℃,當透水鋪面百分比達100%以上時,硬鋪面表面溫度可降低約2℃;另外,關於風流況模式的結果顯示,街道尺度越小街谷內易產生漩渦,街道尺度越大建築物週邊易產生漩渦,此兩種現象汙染物較不易排出;就植栽對微氣候之影響而言,葉面積密度越大,氣流穿透植栽之滲透性越低,但植栽周邊因遮蔽效應,地表溫度仍較無樹時低。

English Abstract

The Jhong Sing Village plan is based on the concept of a garden city originated by Howard E. The plan is still well conserved as considered an exemplary project, which is the first township built in Taiwan by based on the model of a western city in Taiwan. At present, the government is planning to regenerate the village as an advanced research park with the while conservation retaining of the existing city pattern and well environment meanwhile to achieving the concept of an ecological city. The entire plan, wind environment in the village is carefully assessed using by means of a scientific technique. This investigation selects the Jhong Sing Village as a study target and uses computational fluid dynamics (CFD) to analyze the environment based upon the validation of a field experiment, including the urban wind environment, the effect of wind effect on trees influence, and the heat flux of pervious pavement. Analytical results show that 60% of pervious pavement can reduce air temperature by approximately 1°C above the solid pavement. The same conditions can reduce air temperature by 3°C above the pervious pavement. When all pavement is pervious, the temperature reduction can reach approximately 2°C. Furthermore, simulation results regarding to more findings on the wind patterns show that small street aspect ratio easily has a recirculation in the middle of the street. Similar conditions exist in the building proximity with large street scale. Under these conditions, pollutant removal is difficult. Moreover, a high density of leaf area density may reduce the infiltration rate of tree crown. However, due to the shading effect, the underneath of the trees has lowerground temperatures than no tree at the surroundings.

Topic Category 工程學 > 土木與建築工程
工程學 > 市政與環境工程
Reference
  1. 邱英浩、吳孟芳(2010)。不同街道尺度對環境風場之影響。都市與計劃,37(4),501-528。
    連結:
  2. Alexandri, E.,Jones, P.(2008).Temperature decreases in an urban canyon due to green walls and green roofs in diverse climates.Building and Environment,43(4),480-493.
  3. Ali-Toudert, F.,Mayer, H.(2007).Effects of asymmetry, galleries, overhanging fac, ades and vegetation on thermal comfort in urban street canyons.Solar Energy,81(6),742-754.
  4. Ali-Toudert, F.,Mayer, H.(2006).Numerical study on the effects of aspect ratio and orientation of an urban street canyon on outdoor thermal comfort in hot and dry climate.Building and Environment,41(2),94-108.
  5. BS 5925(1991).Code of Practice for Ventilation Principles and Design for Natural Ventilation.London:British Standards Institution.
  6. Emmanuel, R(2005).Thermal comfort implications of urbanization in a warm-humid city: The Colombo Metropolitan Region (CMR), Sri Lanka.Building and Environment,40(12),1591-1601.
  7. Emmanuel, R.,Rosenlund, H.,Johansson, E.(2007).Urban shading - a design option for the tropics? A study in Colombo, Sri Lanka.International Journal of Climatology,27(14),1995-2004.
  8. Etheridge, D. W.,Sandberg, M.(1996).Building Ventilation: Theory and Measurement.New York:John Wiley & Sons.
  9. Harman, I. N.,Barlow, J. F.,Belcher, S. E.(2004).Scalar fluxes from urban street canyons, partⅡ : Model.Boundary- Layer Meteorol,113(3),387-409.
  10. Oke, T. R.(1987).Boundary Layer Climates.New York:Methuen.
  11. Saaroni, H.,Ben-Dor, E.,Bitan, A.,Potchter, O.(2000).Spatial distribution and microscale characteristics of the urban heat island in Tel-Aviv, Israel.Landscape and Urban Planning,48(1-2),1-18.
  12. Seginer, I.,Mulhearn, P. J.,Bradley, E. F.,Finnigan, J. J.(1976).Turbulent flow in a model plant canopy.Boundary-Layer Meteorol,10(4),423-453.
  13. Velazquez-Lozada, A.,Gonzalez, J. E.,Winter A.(2006).Urban heat island effect analysis for San Juan, Puerto Rico.Atmospheric and Environment,40,1731-1741.
  14. 吳黛岑(2007)。碩士論文(碩士論文)。國立成功大學建築學系。
  15. 邱英浩(2009)。植栽樹冠形狀對風速衰減之影響。都市與計劃,39(1),59-69。
  16. 邱英浩、何育賢(2008)。The effects of tree arrangements on the changes of wind environments by field measurement and CFD method。ICLEE 2008景觀及生態工程國際研討會暨兩岸景觀及生態工程研討會,台北:
  17. 邱英浩、何育賢(2008)。植栽配置與孔隙率對環境風場之影響─CFD模擬。2008聯合年會(中華民國都市計劃學會、區域科學學會、地區發展學會)暨論文研討會,台北:
  18. 邱英浩、何育賢(2009)。植栽樹冠形狀對風速衰減之影響─CFD模擬。2009年第十六屆海峽兩岸城市發展研討會,鄭州:
  19. 柏春(2008)。城市氣候射計─城市空間型態氣候合理性實現的途徑。北京:中國建築工業出版社。
Times Cited
  1. 孫振義(2017)。熱季街道環境與熱舒適性關係之研究。都市與計劃,44(4),375-397。
  2. 邱英浩、汪至佳、江志成(2014)。植栽及透水鋪面對街道表面溫度之模擬。建築學報,88,61-78。