tunnel turbulence 中文意思是什麼

tunnel turbulence 解釋
風洞湍流度
  • tunnel : n 隧道；地道；坑道；管道，煙道，風洞；【礦物】石巷，平峒。 tunnel warfare 地道戰。vt （〈英國〉 l...
  • turbulence : n. 1. （風等的）狂暴；激流（現象）。2. 騷亂，動亂；強橫。3. 【氣象學】亂流。
  1. This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher reynolds number.

    這種紊流使風洞內的流譜與在較高的雷諾數下自由氣流中的流譜相似。
  2. Finite volume method is appilied in numerical modeling of the flow in no - pressure tunnel of high water reservoir in this paper. i select standard k - turbulence modeling that put forward by launder and spalding in 1972 by weighted poly - turbulence modeling. the difficulty is that there is free surface in flow, but free surface problem ' s calculating region is indefinitely

    本文利用有限體積法對高水頭下水庫無壓泄水洞水流進行了紊流數值模擬，根據多種紊流模型的優缺點進行比較，選擇了launder和spalding於1972年提出的標準的k ?紊流模型。
  3. A second method of measuring the turbulence in a wind tunnel makes use of a "pressure sphere. "

    測量風洞紊流度的第二個方法是使用「壓力球。」
  4. Using the system designed in this thesis work, flow field calibration of the wind tunnel is accomplished, which covers dynamic pressure drop coefficient, dynamic pressure time stability, axial static pressure gradient, boundary layer, and degree of turbulence, etc. boundary layer measuring principle and method are especially described in detail, the relationship between boundary layer thickness, wind speed setting, and the depth of the experimental section is summarized, and finally the calibration data for th e model center zone under specific wind speed are given

    然後利用本文設計的系統完成了落差系數、動壓時間穩定姓、軸向靜壓梯度、邊界層及湍流度等內容的流場校測。特別對邊界層測量的原理及方法做了較詳盡的敘述，總結出邊界層厚度與設定風速、實驗段深度的關系，然後給出模型中心區一定風速下校正數值。
  5. A second method of measuring the turbulence in a wind tunnel makes use of a " pressure sphere.

    測量風洞紊流度的第二個方法是使用「壓力球。 」
  6. Numerical calculations are performed by the standard k - model and dynamic mesh capability on vehicles being in crosswinds, running in tunnel, passing by and overtaking each other. their aerodynamic characteristics are analyzed and some different turbulence properties are obtained

    本文對fluent進行二次開發，採用動網格技術及標準k -兩方程湍流模型對類車體在側風情況、穿越隧道及超車、交會過程進行三維非定常數值模擬，獲得了規律性的認識。
  7. Environmental impact assessment, air quality modeling, atmospheric turbulence, air pollution simulating and other wind engineering simulation with wind tunnel

    環境影響評價，空氣質量模式，大氣湍流，空氣污染模擬及其它風工程風洞試驗。
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