Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33258
標題: 防風林風口對風速影響之風洞試驗
Study on the Influence of Wind Speed by the Windbreak Forest Wind Gap in The Wind Tunnel
作者: 李昱廷
Li, Yu-Ting
關鍵字: 防風林
windbreak forest
開口
風洞實驗
保護指數
減風效果
wind gap
wind tunnel experiments
protection index
wind speed reduction
出版社: 水土保持學系所
引用: 1.行政院農業委員會林務局,(2011)「林業統計」,pp.22-23。 2.內政部頒布,(2009)「市區道路及附屬工程設計規範」。 3.王玉懷、莊文斯(1995)「台灣附近海域風場之觀測及探討」,氣象學報,41(2)pp.81-90。 4.王浩中(1996),「防風構造物防鹽功效之風洞試驗」,國立中興大學水土保持學系碩士論文。 5.甘偉航(1965),「保安林遏阻風速功能之調查研究」,台灣林業試驗所報告第117號。 6.甘偉航(1966),「坡地防風林的設置」,臺灣省林業試驗所所訊,第214期,pp.1873-1879。 7.江永哲、李遠慶、陳文福(1977),「現存耕地防風林之功效探討(2)風口對風速之影響」,中華水土保持學報,8(1):100-110。 8.江永哲、吳約西(1986),「分段式防風林耗損能量(風力)之風洞試驗」,中華水土保持學報,17(2):27-41。 9.江永哲、游繁結、蕭飛賓、方富民、黃隆民(1992)「彰化濱海工業區防風設施之風洞測試研究報告」,中興大學水土保持學系。 10.汪從群、黃榮鑑(1983)「大氣邊界層風洞之規劃與設計研究」,行政院國家科學委員會研究計畫研究報告。NSC-72-0414-P-001-01。AEWT001。 11.周恆(1978)「防風定砂」,黎明文化事業股份有限公司。 12.邱祈榮、黃隆明(2010)「台東縣卑南溪口2519級2502號保安林效益探討」,國立台灣大學森林暨資源學系。 13.林信佑(2006)「海堤設施對風速影響之研究」,國立中興大學水土保持學系碩士論文。 14.陳繁首(1977)「日本之保安林經營管理」,台灣省林務局。 15. 游繁結(1982)「海岸林帶厚度對林後減風功效之風洞試驗」,農林學報,31(1):99-127。 16.黃隆明(1997)「不透風式構造物之防風功效研究」,國立中興大學水土保持學系博士論文。 17.劉民偉(2010)「防風網編織形式對減風效果之風洞試驗研究」國立中興大學水土保持學系碩士論文。 18.白鳥勝義(1937):防風林機能の農業気象学的研究(1).季節風調査会誌1。 19.谷 信輝(1952)「防風牆の機能に關する研究。模形防風牆の風洞實驗(その 2)」,日本農業氣象,7(3)(4):56~58。 20.Armitt, J. and Counihan, J.(1968)“The simulation of the Atmospheric Environment.”, Atmospheric Environment, Vol.2,pp.47-71. 21.Biggs, J. M.(1954)“Wind Load on Truss Bridges.”ASCE, Vol.119, pp.49-71. 22.Cermak, J. E. and Peterka, J. A.(1974)“Simulation of Atmospheric Flows in Short Wind Tunnel Test Sections.”Center for Building Technology,IAT,National Bureau of Standard Was Hington,D. C.,June. 23.Counihan, J.(1970)“Atmospheric Enviroment.”Atmospheric Enviroment,Vol.4,pp.159-275. 24.Counihan, J.(1973)“Simulation of an Adiabatic Urban Boundary Layer in a Wind Tunnl.”Atmospheric Environment,Vol.7,pp.673-689. 25.Counihan, J. (1975) “Adiabatic Atmospheric Boundary Layers: A Review and Analysis of Data from the Period 1880-1972,” Atmospheric Environment, Vol. 9, pp.871~905. 26.Standen, N. M. (1972) “A Apire Array for Generating Thick Turbulent Shear Layers for Nature Wind Simulation in Wind Tunnels,” Rep. LTRLA-94, National Aeronautical Esblisment, Ottawa, Canada. 27.Van, E. J., Karschon, R., Razumova, L. A. and Roberts, G.W.(1964)“Windbreaks and Shelterbelts.”W.M.O. Technical note59,pp5-21. 28.Wang Hao, Eugene S. Takle and Jinmei Shen(2001)“Shelterbelts and windbreaks:mathematical modeling and computer simulations of turbulent flows.”Ann.Rev. Fluid Mech.33:549-586. 29.http://120.126.138.196/idb2011/ 台灣編定工業區土地資訊系 統,經濟部工業局。
摘要: 台灣風害頻仍,防風林在防範風害方面扮演著不可或缺的角色,與國土保安有著密不可分的關係。但隨著經濟開發,許多穿越林帶的林內道路將會損害防風林原有之功效,但目前國內少有關於此類之研究;有鑑於此,本研究選擇折角開口,搭配75°、60°及45°三種角度,以及斜交型態開口搭配90°、75°、60°及45°四種角度,加上用來對照之完整林帶共8種林帶配置,以10行林帶為基準,進行風洞實驗,並計算相對風速及保護指數,以期能獲得林內道路對於減風效果之影響。試驗結果顯示減風效果與開口型態之關係較小,但與開口角度有著密切的關係,當開口角度較小時,有較佳之減風效果,甚至在開口角度為45°時,不論是折角或是斜交形態,減風效果均接近於完整林帶配置,而垂直形態之開口則毫無減風效果,因此,若需要在保安林內開闢道路的情況下,當以45°開口為優先考量。
In Taiwan, the windbreak forests play a significant part in protection against wind hazard and are crucial to homeland protection. Many roads that pass through the forest bands as economy develops would compromise the effects to the windbreak forests, in which, however, little research based on this problem has been made. This study thus conducts wind tunnel experiments on eight types of forest band layouts, which are a selection of the angular type gaps at the degrees of 75�, 60� and 45�, and the oblique crossing gaps at the angles of 90�, 75�, 60� and 45�, plus a complete forest band as the control, each arranged in the basis of ten rows. Relative wind speeds and protection indices are calculated, hoping to determine the effects of in-forest roads on the wind speed reduction. The experimental results indicated that the wind speed reduction has little to do with the type of gap but is greatly related to the angles of gap. Smaller gap angles result in better wind speed reduction, so much so that at a 45� degree of the gap, regardless of angular type or oblique crossing type, the forest bands have wind speed reduction all nearly as good as the complete forest band layout. The perpendicular gap is not helping at all in wind speed reduction. Therefore, if to cut through a protection forest to build roads, the optimal option should be a 45� gap.
URI: http://hdl.handle.net/11455/33258
其他識別: U0005-0108201210154000
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-0108201210154000
Appears in Collections:水土保持學系

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