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臺灣能源期刊論文全文

臺灣能源期刊第7卷第2期內容

出刊日期:June, 2020

題目
以計算流體力學模式與光達數據進行風場案例分析
Title
A Wind Farm Case Study by the Computational Fluid Dynamics Model and LiDAR Data
作者
陳銘宏
Authors
Ming-Hong Chen
摘要
本研究之目的在於分析適用於風能評估之計算流體力學之數值模型與參數設定。其中針對紊流模型之測試結果發現Realizable k-epsilon之紊流模型之結果與實驗數據之誤差最小,將列於後續之案例分析當中。在以核研所為標的之案例分析中,採用計算流體力學方法建立分析模型,並搭配先前分析找出之最佳數值模型及參數進行分析,再與光達量測之數據進行比對。在高度從40公尺到100公尺之間呈現一致之結果,而超過100公尺以上的區域之差異則較大。後續建議再以光達設備在相同地點進行從地面到40公尺高度的範圍進行量測,並做進一步的探討與分析。
關鍵字
計算流體力學,風能,光達
Abatract
The purpose of the present study is to verify of the numerical scheme for the evaluation of wind resources by the computational fluid dynamics (CFD). Different turbulence and extended numerical schemes referred in literature were employed and compared against the experimental data. Results showed that the Realizable k-epsilon turbulence model would be the most appropriated choice in the present study. The case study of the wind farm in the Institute of Nuclear Energy Research (INER) campus by the CFD method was conducted. Results were compared with the measured LiDAR (light detection and ranging) data. Similar results were observed within the range from 40 m to 100 m, while larger deviation was shown for the region higher than 100 m. It is also suggested to measure wind data from ground to 40 m by LiDAR for further investigation.
Keywords
computational fluid dynamics (CFD), wind energy, LiDAR