湍流尺度參數 的英文怎麼說
中文拼音 [liúchǐdùshēnshǔ]
湍流尺度參數
英文
turbulence scale parameter- 湍 : [書面語]Ⅰ形容詞(湍急) rapid; rushing; torrential; swiftⅡ名詞(急流的水) rapids; rushing waters
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 尺 : 尺名詞[音樂] (中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」) a note of the scale in ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 參 : 參構詞成分。
- 數 : 數副詞(屢次) frequently; repeatedly
- 湍流 : 1 (急流) swift current; rushing waters; torrent; rapids 2 [物理學] turbulent flow; turbulence; ...
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Meso - scale model ; turbulence parameterization ; turbulence kinematic energy
中尺度模式湍流參數化能量閉合The non - local turbulence parameterization, i. e., transilient theory was used in the host model mm4 to simulate the turbulent activities of the atmosphere
在中尺度區域模式mm4的基礎上對其中的湍流參數化方法作了改進,嘗試用非局地閉合方法代替局地Measurement of turbulent boundary layer over the grooved - surface
小尺度溝槽面邊界層湍流參數的測量Internal waves are a kind of bridge relating the diapycnal mechanical mixing to external sources of mechanical energy : first, internal waves are driven by wind stress and barotropic tide so that large amount of mechanical energy are transported to abyssal ocean with propagation of internal waves ; second, the mechanical energy can directly be cascaded to mixing through instability and breaking of internal waves
內波是外界提供的機械能與混合之間聯系的橋梁之一,一方面風和潮汐通過激發內波,將能量向深海和大洋內區傳遞,另一方面,內波的不穩定和破碎直接將機械能串級到小尺度湍流混合中去。開展傾斜地形上內波的傳播以及內潮的產生等方面的研究對海洋混合過程的參數化以及混合對大洋環流的影響等方面的研究具有重要的科學意義。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。According to the theory of optical wave propagation in the slant path and the itu - r turbulence structure constant model, which is altitude dependent and proposed in 2001, the modified rytov method is extended to be applied to study on the problems, which waves propagate in the slant path. the scintillation index as a function of the rytov variance is obtained from weak to strong fluctuation regions with plane wave and sphere wave incidence, respectively
根據斜程傳輸理論和2001年提出的itu - r湍流大氣結構常數模型,將修正pytov方法推廣應用於斜程傳輸問題研究,得到了平面波和球面波斜程傳輸時的閃爍指數,分析了湍流內尺度、近地面風速等參量對閃爍指數的影響。分享友人