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來源文獻資料
摘要
外文摘要
引文資料
題名:
山區地形中風速壓剖面之檢討
書刊名:
建築學報
作者:
方富民
/
鍾政洋
/
梁琮琪
/
楊峻
作者(外文):
Fang, F. M.
/
Chung, C. Y.
/
Liang, T. C.
/
Yang, J.
出版日期:
2011
卷期:
78
頁次:
頁63-80
主題關鍵詞:
風力規範
;
數值模擬
;
風洞試驗
;
Wind design code
;
Numerical simulation
;
Wind tunnel test
原始連結:
連回原系統網址
相關次數:
被引用次數:期刊(0) 博士論文(0) 專書(0) 專書論文(0)
排除自我引用:0
共同引用:0
點閱:24
本研究針對現行風力設計規範中有關山區三個基本特殊地形(懸崖、山脊與山丘)之風場進行探討,據以建立相應之風場資料庫,繼而評估規範中建議風速壓剖面之適宜程度。研究中先首應用風洞試驗量取相對低雷諾數情況下模型地形之風場,以為數值模擬結果驗證之基準。待風場數值模式確立後,再以系統化的數值模擬獲取與實際情況相符合的高雷諾數風場資料。除了細部檢視此三種特殊地形之風況特性外,本研究再藉數值結果與規範中建議風速剖面飽滿程度之比較檢討其間之差異。主要結果顯示,在山脊與山丘的情況,其背風面會因分流的發生而導致迴流的現象,而此非恆定流的風速變化呈現近似常態分佈的形式。此外,研究中亦發現規範中有關此三個基本特殊地形之設計風速壓剖面,在部份的區域中規範的建議的風速壓剖面上低估之情形。
以文找文
The flow characteristics in cases of an escarpment, a ridge and a hill were investigated systematically to establish the wind flow data base and to assess the validity of the related code in terms of velocity pressure profiles. In the study, velocity profiles of models were measured in a wind tunnel and the results were used to confirm the accuracy of the numerical simulations. After the applicability of the numerical method was assured, a series of numerical simulations were performed to predict the flows of the three unique topographical cases. Accordingly, not only the flow features were examined in detail but the validity of the code suggestions was evaluated. Major results show that in the ridge and hill cases, reverse flow exists in the leeward region due to the occurrence of separation and the local velocity fluctuations behave in a manner close to a normal distribution. Moreover, the velocity profiles suggested by the present code appear somewhat non-conservative.
以文找文
期刊論文
1.
Kondo, K.、Murakami, S.、Mochida, A.(1997)。Generation of velocity fluctuations for inflow boundary condition of LES。Journal of Wind Engineering and Industrial Aerodynamics,67/68,51-64。
2.
Song, C. C. S.、Yuan, M.(1988)。A weakly compressible flow model and rapid convergence methods。Journal of Fluids Engineering Transactions ASME,110,441-455。
3.
Germano, U.、Piomelli, P.、Cabot, W. H.(1991)。A dynamic subgrid-scale eddy viscosity model。Physics of Fluids,3,1760-1765。
4.
Cao, S.、Tamura, T.(2006)。Experimental study on roughness effects on turbulent boundary layer flow over a two-dimensional steep hill。Journal of Wind Engineering and Industrial Aerodynamics,94,1-19。
5.
Carpenter, P.、Locke, N.(1999)。Investigation of wind speeds over multiple two-dimensional hills。Journal of Wind Engineering and Industrial Aerodynamics,83,109-120。
6.
Crank, J.、Nicolson, P.(1947)。A practical method for numerical evaluation of solutions of partial differential equations of the heat conduction type。Proceedings of the Cambridge Philosophical Society,43,50-64。
7.
Fang, F. M.、Chen, J.、Hong, Y.(2001)。Experimental and analytical evaluation of flow in a square-to-square contraction。Journal of Wind Engineering and Industrial Aerodynamics,89,247-262。
8.
Ferreira, A.、Lopes, A.、Viegas, D.、Sousa, A.(1995)。Experimental and numerical simulation of flow around two-dimensional hills。Journal of Wind Engineering and Industrial Aerodynamics,54/55,173-181。
9.
Ishihara, T.、Hibi, K.、Oikawa, S.(1999)。A wind tunnel study of turbulent flow over a three-dimensional hills。Journal of Wind Engineering and Industrial Aerodynamics,83,95-107。
10.
Kim, H.、Lee, C.、Lim, H.、Kyong, N.(1997)。An experimental and numerical study on the flow over two-dimensional hills。Journal of Wind Engineering and Industrial Aerodynamics,66,17-333。
11.
Lubitz, W.、White, B.(2007)。Wind-tunnel and field investigation of the effect of local wind direction on speed-up over hills。Journal of Wind Engineering and Industrial Aerodynamics,95,639-661。
12.
Miller, C.、Davenport, A.(1998)。Guidelines for the calculation of wind speed-ups in complex terrain。Journal of Wind Engineering and Industrial Aerodynamics,74-76,189-197。
13.
Takahashi, T.、Ohtsu, T.、Yassin, M.、Kato, S.、Murakami, S.(2002)。Turbulence characteristics of wind over a hill with a rough surface。Journal of Wind Engineering and Industrial Aerodynamics,90,1697-1706。
14.
Takahashi, T.、Kato, S.、Murakami, S.、Ooka, R.、Yassin, M.、Kono, R.(2005)。Wind tunnel tests of effects of atmospheric stability on turbulent flow over a three-dimensional hill。Journal of Wind Engineering and Industrial Aerodynamics,93,155-169。
15.
Weng, W.、Taylor, P.、Walmsley, J.(2000)。Guidelines for air flow over complex terrain: Model developments。Journal of Wind Engineering and Industrial Aerodynamics,86,169-186。
會議論文
1.
MacCormack, R.(1969)。The effect of viscosity in hyper-velocity impact cratering。Washington D.C.。
圖書
1.
內政部建築技術審議委員會、建築物耐風設計規範審查專案小組(2006)。《建築物耐風設計規範及解說》。臺北市:營建雜誌社編印。
延伸查詢
2.
Architecture and Building Research Institute(2006)。Wind-resistant design code。Taipei。
其他
1.
American Society of Civil Engineers(2002)。Minimum design loads for buildings and other structures。
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