turbulence method 中文意思是什麼

turbulence method 解釋
湍流法
  • 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。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Method of atmospheric turbulence measurement by lidar

    激光雷達大氣湍流測量方法研究
  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. It adopts reynolds time - average n - s equation and k - ? turbulence model to calculate the inner 3 - d viscid turbulence flow of centrifugal pump. in the unstructured grid, the governing equations are discretized with finite volume method based on finite element method. then the pressure correction method is used to carry out numerical calculation

    而後採用基於雷諾時均n - s方程與標準-湍流模型來求解離心泵葉輪內三維粘性紊流，在非結構化網格中，採用基於有限元的有限體積法對方程進行離散，用壓力校正法進行數值求解。
  4. 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。」
  5. It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency

    對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。
  6. 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。
  7. Only the method for using backwater expression can predict the variation of water surface near the spur dike very well. numerical simulations of the flume experiment cases are carried out with the standard k - e turbulence model

    隨后採用標準k一e紊流數學模型，依據水槽試驗資料，數值模擬了繞壩和漫壩兩種情況下水流的流動過程。
  8. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  9. Study of numerical method for flow transition prediction based on turbulence model

    一種基於湍流模式的轉捩預測方法
  10. In this thesis, adopting compressible navier - stokes equations and compressible k - - e turbulence double model, studied 2d viscous flow field in wet turbine ' s separate - stage. coordinate transformation is made for the navier - stokes equations by using body fitted coordinate system, moreover, the flow field in 2d cascade is calculated by using the well - established simple method

    本文採用可壓縮氣體的n - s方程，並採用可壓縮的-湍流雙方程模型，研究了飽和汽輪機分離級內二維粘性葉柵流場，採用貼體坐標系對n - s方程進行了坐標變化，並利用成熟的simple演算法對二維葉柵內的流場進行了計算。
  11. 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。 」
  12. In this paper, the standard three - dimensional k - two - equation turbulence model which modifies the item of buoyant effect and simple algorithm are adopted, wall functions are used to deal with the boundary condition and a simplified method - box method is used to model the supply air boundary condition

    本文數值計算採用經過浮升力項修正的k -兩方程模型和simple演算法，壁面邊界條件採用標準壁面函數，風口邊界條件採用盒子方法。廠房內的氣流運動主要受風口出流動量的制約，因此選擇合理描述入流邊界條件的風口模型對數值模擬至關重要。
  13. In this article, simulations of air distribution in the vav air - conditioned office are carried out in the cases of different air - supplying diffusers including slot diffuser, sqaure grille, bar grille and square diffuser to supply air, the standard three - dimensional k - ? two - equation turbulence model with correctional item of buoyancy effect and simple algorithm are adopted, and wall function method is used to handle boundary conditions

    本文採用經過浮升力項修正的-兩方程模型和simple演算法，應用壁面函數法處理邊界條件，對利用包括條縫風口、方型百葉風口、長條型百葉風口和方型散流器不同型式送風口送風的變風量空調房間內的氣流組織進行了模擬。
  14. The three - dimensional primitive equations were derived for ocean in the condition of turbulence, by using the reynods time average method

    首先在流體動力學和熱動力學的基礎上，應用雷諾時均方程法，詳細推導得到海水在湍流狀態下的三維原始方程。
  15. The - two - equation turbulence model and the control - volume integration method and simplest algorithm were employed to simulate the three dimensional, isothermal, incompressible, rectangular two - impinging - jet on a flat plate

    本文採用-紊流模式，使用控制體積積分之有限差分法及simplest計算程序，進行三維、恆溫、不可壓縮、矩形雙噴射撞擊流場之數值模擬。
  16. This paper studies the diffuser ' s influence on the fadw ' s running properties experimentally including the inner wall and outer wall of diffuser and the backpressure of the diffuser. to prevent the gas of fadw from leaking into the laser cavity because of the effect of layer and turbulence the leak - proof flakes are designed. first the method of the leak - proof flake design is studied and then its influence on the properties of fadw is studied experimentally

    實驗研究了擴壓器對fadw工作性能的影響，提出了擴壓器結構和超音速噴管相對布局參考數據；研究了氣動窗口側壁防漏片的結構對氣動窗口性能的影響，並給出其工程設計方法；同時還研究了擴壓器不同的背壓對整個fadw作性能的影響，據此提出了擴壓器與引射器結合的設計方案，從而為大壓比、高性能的fadw的設計提供了進一步設計參考方法。
  17. A new fluid - structure coupling numerical method is developed in the present dissertation. 2d / 3d navier - stokes equations and low renolds number turbulence model are solved in the fluid zone, while the structure models are solved in the solid zone. the boundary conditions are transferred between the two zones after each time step

    該方法採用了準確的數學物理模型，在流體區域求解二維、三維favre平均的非定常navier - stokes方程，在固體區域對于不同的問題求解體振動模型，每一個計算時間步完成後，流體和固體之間傳遞一次邊界條件。
  18. In this paper, two - dimensional and three - dimensional flow models in supersonic inlet and a simple reacting flow model in combustor and integrated flow field are established on the basis of k ? two - equation turbulence model and steady - compressible n - s equations, which are dispersed by finite volume method

    本文以定常可壓縮n - s方程作為控制方程，採用-雙方程模型作為湍流模型，分別建立了超聲速進氣道的二維、三維流場計算模型和補燃室及一體化流場的湍流燃燒模型，並採用有限體積法對控制方程進行離散。
  19. Computing about five work conditions of slurry pump, the fields of velocity, compression and turbulence intensity are obtained, and the pump performance curves are also achieved to check the computation credence. based on the results of flow fields, particle tracks in varied conditions are achieved by using lagrange method

    本文對渣漿泵的在5個工況下（包括設計工況）的清水流場進行了計算，得到了描述流場的速度、壓力、紊流強度等參數場的分佈情況，最後計算了泵的運行性能曲線來校核計算的可靠性。
  20. In this article, constituting some the equations which reflect the flow law and building and applying many mathematical models of physical and chemical reactions in the the plasma ignition : applying k - two equations turbulence model to calculate the turbulence parameter supplying simplied reaction systerm model and applying eddy break - up model and p - i thermal radiation model. with these reasonable simplied modles, numerically simulating the flow field in the plasma ignition. during the numerical simulation, applying the body - fitted coordinates for the complex geometry of the computional field ; using the mixing format to disperse the equations ; applying simplec algorithm method to solve the equations ; using above models and methods, it can get flow field distribution ; including temperature, pressure, turbulent kinetic energy and its dissipation rate, turbulent viscosity, velocity, density. these results are significant to design and improve the plasma ignition

    本文旨在通過構造反映等離子點火器內部流動規律的基本方程組，建立描述等離子點火器內部的復雜物理化學過程機制數學模型：模擬等離子發生器內部燃燒的-雙方程湍流流動模型；模擬氣體燃料在燃燒時中化學反應的簡單化學反應系統模型；模擬等離子點火器內部湍流預混燃燒的漩渦破碎模型；模擬等離子點火器高溫燃氣及其壁面的p - i輻射換熱的模型等等，對模型進行一定的合理的簡化，然後數值模擬等離子點火器內部流場的流動。
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