風速對數廓線 的英文怎麼說
中文拼音 [fēngsùduìshǔkuòxiàn]
風速對數廓線
英文
logarithmic velocity profile- 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
- 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
- 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
- 數 : 數副詞（屢次） frequently; repeatedly
- 廓 : Ⅰ形容詞（廣闊） wide; extensive Ⅱ名詞（物體的外緣） outline
- 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
- 風速 : [氣象學] wind [air] speed; wind [air] velocity
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Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence. simulation results showed that refined meshes reduced turbulent contributions of subgrid scales, sensitivity of simulation results to sgs parameters decreased, and features of the whole boundary layer were explicitly resolved better. results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation. therefore, it concluded that the les method was able for simulation of surface layer flow and turbulence, and might be used for further applications
採用加密網格的大渦模式獲取邊界層風溫場的高解析度模擬結果，並據以分析近地面層大氣的湍流特性。結果表明，較小的網格尺度使次網格湍流貢獻率大為降低，模式計算結果對次網格參數的依賴性減小，邊界層整體特徵得到更好的反映。同時，模擬出的近地面層通量廓線關系及湍流速度特徵與實際觀測結果吻合甚好，表明模式具有反映近地面層平均運動和湍流特性的能力。The results of numerical calculation for four wind shear exponents and seven tower heights shows that taking the wind speed at the rotor centre as the initial uniform design wind speed is reasonable, and that wind shear is independent of the aerodynamics design of a wind turbine
在四類廓線指數、七種塔架高度情況下，利用數值積分方式計算得到的結果表明，採用風輪中心風速做為單一的設計風速是切實可行的，風剪切對于風力機的氣動設計基本無關。
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