turbulence stress 中文意思是什麼

turbulence stress 解釋
湍力力
  • 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。
  • stress : n 1 壓力,壓迫,緊迫,緊張。2 【語音】重音;重讀;【詩】揚音;語勢,著重點。3 重要(性),重點,...
  1. Study on pulsating stress of turbulence with strange attractor theory

    用奇怪吸引子理論研究紊流脈動壓力特性
  2. By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared

    摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測,比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。
  3. 3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface

    採用adv對灘地種樹前後灘槽交界區域的流速場進行了量測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力,這個表觀應力可以看作是交界面處的脈動函數並將其定量化。
  4. The two - equation turbulence models can be thought to consist of two more or less separate parts : the scale determining model, which provides scalar information about the turbulence, and the constitutive model, which determines the reynolds stress tensor

    所涉及到的兩方程湍流模型一般包含兩部分:一是尺度標定模型,它給出了湍流的標量信息,如兩方程模型的尺度因子,或者。
  5. Results show that the longitudinal velocity distribution fluctuates significantly, and that the relative turbulence intensity and reynolds stress have a little increase

    結果表明,布設種植圈后,縱向流速分佈波動明顯,相對紊動強度和雷諾應力均略有增加。
  6. A three - dimensional - acoustic doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site. the influence of measurement site and the depth / vegetation height ratio on the measured velocity profile and turbulence intensity and the renolds stress is analyzed. the characteristics of the measured velocity distributions and the results of the previous investigators are used to select an analytical expression for the shape of the velocity profile

    利用三維超聲波多普勒流速儀( adv )量測不同位置、不同流量下的瞬時流場。分析了測點位置和水深與植被高度比對時均流速分佈的影響。本文還給出了種樹段紊動強度及雷諾應力的垂線分佈。
  7. Next, aiming at the state of the art in engineering turbulence models, one extended explicit algebraic reynolds stress model to simulate anisotropic buoyant turbulent flows. validation was done using experimental and other numerical results of turbulent thermal mixing in t - junction flows

    進一步的,針對當前考慮浮力作用紊流模型的研究現狀,導出了適合模擬各向異性的浮力紊流的顯式代數雷諾應力模型,並利用t型交叉管內的溫度混合試驗成果進行了分析驗證。
  8. At the same time, it presents three turbulence models ( standard k - ? model, renormalization group k - ? model and reynolds stress model ) which have been used widely at present, and then their merits / shortcomings have been compared while being used to calculate swirling jets

    文中對目前應用較多的?模型、重正化群( rng )的?模型及雷諾應力模型進行了理論上的分析,經過對不同旋流強度的旋轉射流的計算,比較了它們在實際求解中的優劣。
  9. If the two - equation turbulence models employ a linear relationship between the reynolds stress and the mean strain - rate tensors, this relationship is known as the generalized boussinesq model, the two - equation models can be extended for a wider range of applicability by developing more advanced nonlinear algebraic relations between the stress tensor and the mean - velocity gradient and the turbulent scales, this is known as explicit algebraic stress models ( easm )

    另一個是構成模型,即決定應力張量、應變率張量和兩個湍流尺度因子之間的函數關系式,它決定了雷諾應力。如果構成模型是線性的,則為boussinesq渦粘模型( evm ) ,如果構成模型是非線性的代數關系式,則為顯式代數應力模型( easm ) 。
  10. Lai, c. j. & knight, d. w., " distribution of streamwise velocity and boundary shear stress in compound channels ", proc., 3rd. int., sympo. on refined flow modeling and turbulence july, 26 - 28, pp. 525 - 536, 1988, tokyo

    賴泉基,顏志偉, "壓力紊流通過方形障礙物之流場解析" ,第十三屆全國力學會議論文集,第1093 - 1102頁, 1989年12月,臺中。
  11. The ratio between the reynolds stress and the turbulence energy in the inner regime of the mixing layer keeps almost constant

    但雷諾切應力與湍能的比值在混合層中心卻保持不變。
  12. Besides, in this paper, the velocity distributes and recirculation areas of two phases are shown, and the differences between simulations and experiments are diminutive. turbulence kinetic energy ( ?, turbulence dissipation rate ( e ), reynolds stress and turbulence intensity are also simulated to reflect turbulence flow

    另外,本文計算了旋流燃燒器內氣固兩相的速度和迴流區的分佈,並和已有的實驗數據進行了比較,同時還計算了湍動能、湍能耗散、雷諾應力和湍流強度等反映湍流的物理量。
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