水流能量方程 的英文怎麼說

中文拼音 [shuǐliúnéngliángfāngchéng]
水流能量方程 英文
energy equation of flow
  • 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...
  • 能 : 能名詞（姓氏） a surname
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 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...
  • 水流 : 1. （江河） rivers; streams; waters2. （流動的水） current; water flow; fluent; flow; [水文] stream current
  • 能量 : 1 [物理學] energy; amount of energy 2 （能力） capabilities; capacity; 能量不滅 conservation of e...
  1. I have taken impotance to analyze the rallying point of famous product, concrete cost and capability of providing and guarantee in this artical, meanwhile, i have caculated the quantity of concrete needed for the year and got the regression equation with the historic data for drilling footage of eight years and the consuming quantity of oilwell cement by the method of linear regression, and it has very significance for the making of stock contract and the plan of concrete production, i have analyzed the physical distribution of oilwell cement by the transpotation flex and the advantage or disadvantage between direct distribution and distribution to store in this artical, and i have tried to find the balance point of the two distribution ways by the ecnomic analysis and pointd out the conception of economic semidiameter, and come to the conclusion of direct distribution, distribution to store, and subarea of distribution to store at last

    本文對油井水泥供應商在品牌號召力、水泥成本、供應保障能力等方面進行了詳盡分析，並對供應商進行了能力排序;用線性回歸方法從八年鉆井進尺與油井水泥消耗量的歷史數據推算了當年度油井水泥需求量，得出了回歸方程，這對于油井水泥采購合同的制訂、水泥供應商生產計劃的制訂具有相當重要的意義;從運輸彈性分析出發對油井水泥物流配送進行了研究，對直達配送、入庫配送的優缺點進行了詳細的分析，在經濟分析的基礎上力求找到兩種配送方式的均衡點，並提出了經濟半徑的概念，得出了直達配送、入庫配送、入庫分區距離等幾項結論。
  2. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  3. To avoid manual labor of chiseling - grossness, in the area of second - stage concrete construction, permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete. substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars, and safety of construction and stability of quality, and greatly reduce cost. it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction

    混凝土縫面處理採用高壓水流沖毛技術，大大提高了施工工效，減少了倉面污染；模板工程大量採用定型鋼模板施工技術，提高了壩體混凝土成型質量和工程進度；在二期混凝土施工區域，為免除人工鑿毛勞動強度，採用永久性免拆金屬模板網作為一期混凝土模板；鋼筋連接改進傳統的電焊連接方式，採用大量採用鋼筋接頭機械連接技術，有效提高了接頭強度和鋼筋連接速度，施工安全性大大加強，質量穩定性有效提高，經濟成本大大降低；三峽二期工程持續高強度混凝土施工系統工程的研究，使三峽工程成為名符其實的「世界一流工程」成為可能；三峽二期工程混凝土溫控綜合技術的應用，有效降低了壩體混凝土溫度的產生；混凝土表面處理及裂縫處理技術的應用，提高了建築物的整體性和耐久性。
  4. To improve understanding of the processes of heterogeneous land surface - atmosphere interaction, the utilization of satelli te remote sensing is indispensadle. in this paper, with the aid of satellite remote sensing and fiend observational data which observed during intensive observation of huaihe river bain energy and water cycle experiment hubex in 1998, the surface albedo, ndvi normalized difference vegetaton index and surface temperature in regional scale of hubex could be derived. then, the distribution of regional energy balance components could be estimated. this wor provided the physical foundation for the numerical simulation of the huaihe river basin energy and water pro cesses, and is important for us to further analyze the regional distribution of surface characteristic parameters ad energy balance components with the change of the weather situation in hubex in 1998. our work is still in a developing stage, some methods of retrieval in the paper should be improved further

    利用1998年淮河流域加密觀測試驗hubex iop期間的資料，進行淮河流域能量平衡的參數化方案的研究，用noaa衛星的avhrr資料建立了試驗區地表特徵參數及能量平衡各分量的參數化方程，並對衛星遙感反演結果和試驗觀測值進行了對比，為淮河流域能量和水循環的數值模擬提供了物理依據。
  5. Abstract : the fuzzy control technology in fuzzy control roller washing machine is introduced. the water level, water stream, washing time, rinse times and dehydration time can be determined according to clothes weight, temperature and turbid. the automation of washing clothes is realized through the application of fuzzy control technology

    文摘:介紹了模糊控制全自動滾筒洗衣機的模糊控制技術：通過傳感器檢測被洗衣物的布量、洗滌液的渾濁度和溫度，利用模糊推理的方法自動確定水位高低、水流強度、洗滌時間、漂洗次數和脫水時間.模糊控制技術的應用實現了衣物洗滌過程的全自動化，具有一定的智能功能
  6. The equation for estimating land surface temperature of huaihe river basin has been set up by using the data of split window channels of trmm and gms - 5 satellite and the ground observation data of hubex

    利用trmm衛星和gms - 5衛星的兩個紅外分裂窗通道的亮溫資料，結合淮河流域能量與水分試驗hubex加密觀測期間獲得的地面溫度的觀測資料，建立了反演淮河流域地面溫度的參數化方程。
  7. For studying the regulation rules of the sediment of the second phase project, and studying the reservoir capacity loss caused by deposition, the amount of sediment passing through the turbines, and the deposition and flow regime near the intake of the pump - turbines, the deposition of the reservoir was studied

    為了研究蒲石河抽水蓄能電站二期工程泥沙調度方案，對多個方案的水庫淤積損失、過機沙量、取水口附近的泥沙淤積和水流流態，進行了水庫沖淤研究。
  8. Through analyzing the figure of energy wasting of pump, the quality in pipes is direct proportion of the speed of pump if the speed of pump is reduced. the power of electromotor fell the cube of the speed of pump. so the energy wasting of constant pressure water supply based on variable frequency speed regulating technology is envident less than the traditional mode is used throttle to supply water

    分析水泵工況的能耗比較圖，可以看出利用變頻調速實現恆壓供水，當轉速降低時，流量與轉速成正比，功率以轉速的三次方下降，與傳統供水方式中用閥門節流方式相比，在一定程度上可以減少能量損耗，能夠明顯節能。
  9. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  10. In the paper, we firstly acknowledge the characteristic of rainfall kinetic energy and runoff energy, current state and the development of erosion dynamic process by consulting a large number of domestic and foreign literature datum. on the basic, we systemically coordinated the eroded datum of runoff plots of soil and water conservation stations at xifeng, tianshui, suide, and chunhua et al

    本文首先在查閱了大量國內外文獻資料，全面了解降雨動能與徑流能量的特性及侵蝕動力過程等方面的研究現狀及最新進展的基礎上，系統整理了西峰、天水、綏德及淳化泥河溝等水土保持試驗站的徑流場侵蝕資料。
  11. Three - gorges ship lift structure is one of important navigation facilities in the three - gorges projects. as far as its scale for navigation, its lifted weight and height are concerned, the ship lift structure is the greatest one in the world. in this paper taking the ship lift structure as background, the principle of mr adaptive reduced vibration control system is proposed to solve the problem of seismic whipping effect of the top machinery building of ship lift structure

    三峽大壩升船機是三峽水利樞紐工程中重要的通航設施之一。就其通航規模、提升重量及高度而言，均屬國內外已建、在建升船機之首位。本文以該大型升船機為工程背景，對升船機頂部廠房地震鞭梢效應問題提出了磁流變智能自適應減震控制的原理、設計方法和效果分析。
  12. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。
  13. The additional resistance caused by sediment transport of bed - load and suspended load is derived from mean energy equation of sediment - laden flow, and the variation of resistance in sediment - laden flow is discussed

    從挾沙水流的平均能量方程出發，得到了推移質附加阻力的計算公式及懸移質附加阻力計算公式，並對挾沙水流的阻力進行了討論。
  14. A variety of mathematical models based on continuous equation and the momentum equation and many solutions partial differential equation value computational method in the open canal turbulent flow solution, still could widely apply and yield the satisfactory result

    但是，非穩態的navier - stokes方程對于明渠水流的瞬時運動還是適用的，以連續方程和動量方程為基礎，建立的各種數學模型和許多求解偏微分方程的數值計算方法在明渠紊流的求解中仍能廣泛應用。
  15. The horizontal swirling flow internal dissipater tunnel being built in gongboxia power station will be the first one reconstructed from a diversion tunnel whose discharge reaches to 1000m vs and water head is more than 100m in china. its scheme ' s argumentation, test research and future apply will have important meanings to the design. research and engineering application of internal dissipation discharge tunnel with swirling flow, will powerfully promote engineering application of this new kind of dissipation mode, which may solve some high velocity problems in high dam construction and provide a engineering example for technological and economical augmentation in a diversion tunnel reconstruction. it is of theoretical and practical importance to promote hydraulic structure researches and development

    公伯峽水電站右岸旋流內消能泄洪洞是國內第一個泄量達1000m s 、水頭超過100m ，即將修建的旋流式內消能泄洪洞，其方案的論證與試驗研究以及建成后投入使用，將在國內外旋流式內消能泄洪洞設計、研究與工程應用中具有重要的意義，將有力的推動這一新的消能形式在工程中的應用，從而為解決高壩建設中泄水建築物的高速水流問題與導流洞改建的技術與經濟問題提供工程實例，對推動與發展水工水力學的研究與發展均具有重要的理論與實踐意義。
  16. However, the forecast ability of the mathematical model is restricted since it is difficult to consist of the closed equations in a large amount of flow problems in hydraulic engineering the synthetic model, which combines the experimental and numerical simulation, is normally used for these complicated problems the results are satisfied in hydraulic engineering

    但由於水利工程中相當數量要研究的水流過程還不能組成封閉的方程組，因而使得數學模型的預報能力受到限制。目前，在許多情況下，常採用模型試驗和數值模擬相結合的復合模型方法解決復雜的工程問題，並能獲得比較滿意的結果。
  17. One of the main reasons of the step spillway having greater energy dissipation is that the potential energy of the flow continuously transforms to the kinetic energy along the spillway and the kinetic energy partially transforms to the turbulence kinetic energy, and the flow energy is finally dissipated by means of turbulence dissipation

    研究表明，階梯壩面水流能量耗散較大的重要原因之一是由於勢能沿程不斷轉化為動能，而動能又部分轉化為紊動能，進而由紊動耗散的方式而消耗。
  18. 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。
  19. Applying the energy equation and boundary layer theory, this article also analyzed the relationship of energy transformation of overflow, and obtained the experience index and formula of instability critical conditions

    並應用水流能量方程和邊界層理淪，研究了圍堰過水時的水流能量轉換關系，得到了穩臨界條件的指標和經驗判別式。
  20. Combining the simplified momentum equation, energy equation and state equation of compressible sticky fluid, this paper establishes the numerical model to study the heat - transfer property of the substances in super - critical waterwall tubes with the newest international water and steam standard - iapws - 97

    本文採用最新的國際水與水蒸汽標準iapws - 97 ，通過聯立求解簡化的可壓縮黏性流體的動量方程、能量方程和水與水蒸汽的狀態方程，建立數值模型研究超臨界水冷壁管內工質的傳熱特性。
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