boundary layer profile 中文意思是什麼
boundary layer profile
解釋
附面層剖面圖-
Boundary - layer velocity profile
邊界層速度剖面 -
The detailed experimental investigation of the distribution and evolution of the mean velocity profile were executed. the signal of instantaneous velocity, the energy spectra of velocity and wave characteristics in the boundary layer have been analyzed
對局部加熱的水平平板下表面邊界層內的時均速度的演化規律進行了詳細的測量，同時對速度脈動信號以及速度能譜進行了分析，並對邊界層內的波動特性進行了研究。 -
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 first two are indirect methods in as much as they rely on measurements of overall torque or resistance and boundary layer similarity laws to obtain du +, whereas the velocity profile method provides a direct measurement of du +
首兩個是間接的方法一樣因為他們依靠的測量整體扭矩或阻力和邊界層相似性法律以取得杜+而流速剖面法提供了一個直接測量杜+ 。 -
Boundary layer velocity profile
邊界層速度剖面
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