粗糙面水流 的英文怎麼說

中文拼音 [cūcāomiànshuǐliú]
粗糙面水流 英文
rough surface flow
  • 粗 : Ⅰ形容詞1 （長條東西直徑大的） wide （in diameter）; thick 2 （長條東西兩長邊的距離寬的） wide （i...
  • 糙 : 形容詞（粗糙; 不細致） rough; coarse; crude
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 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...
  • 粗糙 : （不精細; 不光滑; 不細致; 草率） coarse; rough; crude
  • 水流 : 1. （江河） rivers; streams; waters2. （流動的水） current; water flow; fluent; flow; [水文] stream current
  1. Based on hydrodynamic lubrication theory, a rectangular tire tread model for simulating the viscous hydroplaning of tire is set up, taking into consideration the effects of hydrodynamic action, squeeze action and road roughness with numerical solutions obtained

    摘要根據流體動力潤滑理論，將輪胎貓性滑水問題模擬為胎面單元與路面之間的動壓、擠壓膜問題，同時考慮了路面粗糙度的影響，建立了輪胎胎面單元黏性滑水問題的數學模型，並進行數值求解。
  2. A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains

    模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。
  3. The reason is that the quality and function of current forest can not match the natural primeval forest with perfect soil conservation effectiveness. because unitary surface material and less land surface roughness which can not retain runoff lead to short confluence time, quick delivery of flood, easy superposition of floods, and result to flood disaster

    原因是目前的森林質量和功能都無法與具有水土保持功能的原始森林相比，其地表組成物質太少且單一，地面粗糙度低，起不到對地表徑流的阻擋作用，致使地面徑流匯流時間縮短，洪水下泄快並容易形成洪水疊加，導致洪澇災害加劇。
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