風速方程 的英文怎麼說

中文拼音 [fēngsùfāngchéng]
風速方程 英文
wind velocity equation
  • 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 風速 : [氣象學] wind [air] speed; wind [air] velocity
  1. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  2. In this paper, the upwind scheme and the central scheme are presented for solving 3 - d n - s equations using the cell - center finite volume spatial discretization and four - stage runge - kutta time stepping scheme, with standard convergence acceleration techniques such as local time stepping and implicit residual smoothing

    在n - s方程的數值計算上，採用了中心差分格式和迎風格式，用格心格式的有限體積法進行了空間離散，用四步龍格?庫塔法作顯式時間推進，並採用了當地時間步長和隱式殘差光順等加速收斂措施。
  3. The method described in this paper may simulate real natural wind at the site of bridge using real wind velocity continuous records in short period and putting aside wind spectrum on the base of simulating merit or demerit, then buffeting response has been analysised

    本論文在分析了已有風場模擬方法優缺點的基礎上，沒有採用已有的風譜，僅用橋址處短期的實際風速時程記錄，進而模擬該橋處的實際風場，從而分析橋梁的抖振響應。
  4. On the basis of prantel boundary layer idea, wind sand fluid of irreducible rare phase as research object, by the foundation of general equation of wind sand fluid, in the condition of basic hypothesis, the boundary layer equation of car roof surface is set up and the boundary condition the fluid slippage character in solid wall surface is given

    摘要基於普朗特的邊界層思想，以不可簡化成稀相的風沙流體為研究對象，以風沙流的一般方程為基礎，在基本假設的條件下，建立了高速轎車車身頂部過流表面的邊界層微分方程並給出沙流在近壁表面以滑移為特徵的邊界條件。
  5. In the last part, an experiential formula for nondimensional thermal stratification height is obtained, which includes inlet temperature t, inlet velocity v, heat transfer of the wall body q and the distance of heat source l. in order to obtain a more realistic result, the ? model is used to simulate the airflow and the buoyancy item is treated by boussinesq hypothesis. the paper investigates the flow field of the displacement ventilation in an office by a numerical method

    兩方程湍流模型為基礎的壁面函數處理方法，對熱浮升力項採用了boussinesq假設，得到了收斂的溫度場、速度場分佈。在此基礎上，給出了熱力分層高度的計算方法，並分析了送風溫度、送風速度、圍護結構傳熱和熱源分佈等因素對熱力分層高度的影響。
  6. Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion

    在水利工程中經常需要採用數學模型模擬水流的流態，淺水方程是進行平面流態模擬計算的基本控制方程，但因其忽略了流速垂線分佈的不均勻性，在模擬某些平面流態（如風生流動、河灣水流、潛壩等工程附近的流動）時存在一定的局限性。
  7. In order to predict the arrival time at 1au of interplanetary shocks, a simple model called disturbance model is established here. in this model, the travel time is assumed to be a function of energy that is released from solar explosives, and input pulse longitudinal width, input pulse duration, the interaction of interplanetary shock and background solar wind are also taken into account

    本論文考慮了激波爆發源角寬度、能量、驅動時間、激波速度及其與背景太陽風之間的相互作用，利用流體力學擾動方程建立起一個激波擾動傳播模型，用於研究激波從太陽傳播到地球軌道附近（ 1au處）所需要的時間問題。
  8. Thought the pan evaporation, it has been found that the evaporation of shengli crude oil is controlled by the first step and the effect of wind velocity is small. the prediction equation is dw / dt ^ k d ? 2 a ju, y hct / t, which is related with the liquid characters and states ( e. g. thickness, area, viscosity ) and is independent of wind speed

    2 、實驗結果表明，勝利原油蒸發由第一步即蒸發由液體內部易揮發組分向液體表面的遷移來控制，因此風速影響很小，建立速率方程時不必考慮風速，只需考慮液體本身的性質和狀態（如厚度、表面積、粘度等） ，速率方程可寫為： dw dt = kd4 ? 』 a嚴t 。
  9. Since the suggested method makes a significant improvement in wind speed, it is more suitable for wind field estimation over complex terrain than other methods which only concerns the effect of distance. then we calculate the wind change with evaluation, last we can conclude the wind abase the hilly terrain, we find the wind in westward and center plain is much smaller than other area. while the wind in northward hilly area is much bigger with the hilly arising. the wind of chongqing is the biggest period in spring ( april ), the smallest period in winter ( january ), the wind in summer ( july ) is bigger than its in autumn ( october )

    本文利用重慶及其周邊地區的常規氣象站的1951 ? 1980年30年的風速平均資料，針對復雜地形風速診斷，以地理信息系統為數據處理平臺，根據重慶1 ： 25萬dem數據，來獲得重慶市實際復雜地形的高程，提出了一種適合於起伏地形的權重內插方法，通過引入一個表示地形起伏變化程度的因子，構造了一種新的權重函數，來處理復雜地形上的風速，通過與只考慮距因素同反平內插方法比較發現，本方法更適合在起伏地形條件下使用；然後根據經驗公式在地形上進行計算，得出重慶地區起伏地形下的風速分佈；得出重慶市的西部、中部平原地帶風速較小，而北部山區隨海拔高度升高風速也較大；重慶市風速最大時期為四月份，冬季一月份最小，夏季（七月份）大於秋季（十月份） 。
  10. The relatively simple mass continuous equation is used to calculate vertical velocity, and use radial velocity projection relation of dual - doppler radar to retrieve the three - dimensional wind field

    採用較簡單的質量連續方程求取垂直速度方案，利用兩部雷達的徑向速度投影關系反演大氣三維風場。
  11. This can fully consider the effect of the structure of transmission line and the selection of lighting parameter etc. by calculating and analyzing various of factor that affect the lightning tripping probability of 500kv double circuit transmission line, we can draw the conclusions : the result by intersecting method is more accord with the practicality circumstance than by existing standard methods, using unbalance high insulation and reverse sequence of wire can reduce the contemporary outage rate of double circuit line, reducing the footing resistance is one of the most efficiency method to reduce the back stroking rate of double circuit transmission line, the double back stroking rate and the single back stroking rate will fall by three ground wire, when the footing resistance is 10 ohm, the back stroking rate by three ground wire is 83 percent of by two ground wire

    在分析輸電線路繞擊耐雷性能時，對線路的雷電屏蔽問題進行了分析，提出對擊距法進行改進，充分考慮了風速的影響因素，編寫了具有工程實用價值的計算線路繞擊耐雷水平的程序，此方法可以充分考慮線路結構和雷電參數等對繞擊率的影響。通過對影響500kv同桿雙回線路雷擊跳閘率的各種因素進行了計算和分析，得到以下結論：採用相交法的計算結果比定義法更符合實際運行情況。採用不平衡高絕緣方式和導線逆相序排列可以大大降低雙回同時跳閘率。
  12. On the basis of the field data of water temperature, a new formula for estimating water temperature of river by using meteorological factors is put forward by using the method of least squares

    摘要結合某流域水溫原型觀測資料，通過分析水溫與氣溫、太陽輻射、濕度和風速之間的相關關系，採用最小二乘法建立了水溫與氣溫、濕度和風速三者之間的多變量函數方程式，提出了一種利用氣象因子估算天然河道水溫的新公式。
  13. This paper describes the vibration equation of this structure, and derives the horizontal vibration displacement and acceleration response spectrum and the mean square response on the base of the complex modal analytical theory

    建立該結構體系在脈動風作用下的振動方程，基於隨機振動的復模態理論，推導位移和加速度響應譜及均方響應的表達式。
  14. The method making a new task in simulating natural wind. not to depend on old wind spectrum, it depends on real wind velocity continuous records

    這一風場模擬是一個新的嘗試，即不依靠已有的風譜，而是利用實際風速時程記錄的方法。
  15. On the basis of the existing researches about the fully coupled thermal field and moisture movement in unsarurated loess soils, this paper gives the finite element module of thermal field after consideration of various natural elements such as wind speed, radiation, evaporation, and meanwhile put forwards the finite element module of moisture movement on saturated - unsaturated loess soils. furthermore, the paper also probes into the thermal and moisture transferring and coupled theory, and gives finite element module of fully coupled thermal field and moisture movement in unsarurated loess soils

    在國內外有關非飽和土溫度場、水分遷移場及其耦合問題研究的基礎上，給出了考慮輻射、蒸發、風速等邊界條件的溫度場有限元方程，給出了計算飽和-非飽和土水分遷移場的有限元方程，對非飽和黃土中溫度場和水分遷移場傳輸機理及其耦合問題進行了初步的研究，給出了土體溫度場和水分遷移場之間耦合問題的有限元計算模式，分析了溫度和含水量之間的相互作用和影響。
  16. Patterns which are based on experience and experiment and wasteful in time, nonguarantecable in quality. high production efficiently is then achieved. and the same time, this paper puts forward a relative control system, changes and realizes the adjustment of spinning speed and the fixed increasing the technology and application of stone balls, yielding better economic efficienly. in the end of this paper, there is an appendix of computation program edited by c language, the geometry parameters of stone balls

    同時通過恆定總流的能量方程和動量矩方程，確定了風水球轉速的計算方法，建立了相應的控制系統，改變了過去風水球轉速、轉向固定不變的狀況，實現了對轉速轉向的調節，設計了轉向控制系統和轉速控制系統，提高了風水球的技術含量和可觀賞性，從而獲得更好的經濟效益。
  17. For the dual register burner, while cat being applied, it simulates the influences of the flow field in the burner by changing the velocities of primary flow and inner / outer secondary flows, and by changing the opening percents of inner / outer vanes. eventually, the appropriate values for velocities and opening percents of vanes are recommended, to provide engineering problems with theoretical orientations

    針對雙調風旋流燃燒器，本文運用計算機輔助試驗（ cat ）方法對一次風速度，內、外二次風的葉片開度及內、外二次風速度對燃燒器內流場的影響進行了數值試驗，得出了雙調風旋流燃燒器推薦使用的二次風葉片開度和速度值范圍，為工程應用提供了理論依據。
  18. Do the roughly introduction to the wind - driven generator through the way in which the wind - driven generator classifies ; introduce the structure and principle of fd26 - 250kw wind - driven generator, probe into the method of calculating the power of wind - driven generator when the wind is in the low speed, and analyse the course of incorporating the power of fd26 - 250kw wind - driven generator into electricity net ; study on how to supervise the state of the wind - driven generator and diagnose it ’ s malfunction, then confirm the way to build the system of fault diagnosing

    2 .對風能利用的主要設備風力發電機進行了研究。著重介紹風力發電機fd26 - 250kw的結構及原理，探討風力發電機低風速功率的計算方法，並分析了風力發電機的並網過程;提出並實現了風力發電機狀態監測與故障診斷方法。 3 .對如何最優分配太陽能和風能設備的投入這一關鍵問題進行研究。
  19. 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。
  20. This paper calculated the maximum mean velocity of wind and correspondences fluctuating wind continuous chart in duration of 100 years using greatest table sequence record in 10 minutes every month ( 3 ~ 5years ) in the basis of service life of the designed bridge and more probability

    本文從實際風速時程記錄開始，利用短期（ 3 5年）連續的10分鐘月最大時程記錄，在一定保證率下，按照小樣本推算極值的方法，推算100年一遇的平均風速以及在此基礎上的脈動風時程。
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