水動力理論 的英文怎麼說

中文拼音 [shuǐdònglìlǐlún]
水動力理論 英文
hydrodynamic theory
  • 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...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 論 : 論名詞（記錄孔子及其門徒的言行的「論語」） the analects of confucius
  • 理論 : theory
  1. The theoretical calculation method about how to predict the hydrodynamic characteristics of ichthyoid rudder is proposed in this paper

    本文提出了一種魚形舵定常升力的水動力性能預報的理論預報方法。
  2. In the first part, the steady nonlinear vortex lattice method is adopted to calculate the hydrodynamic characteristics of open water ichthyoid rudder, and the induced velocity of ichthyoid rudder is calculated using panel method

    本文理論計算部分，採用定常非線性渦格法計算魚形舵的水動力性能，用面元方法計算舵流場的誘導速度。
  3. In this paper, different computation methods and the hydrodynamic performance of vertical - axis variable - pitch cycloidal ( voith - schneider ) rotor and kobold horizontal - axis rotor are studied

    本文以可調角直葉擺線式水輪機和蹼板式水輪機為對象，研究它們的水動力性能及其理論計算方法。
  4. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  5. The effect of reynolds number on rudder hydrodynamic performance is also analyzed. up to the stall angle the computed lift and drag agree well with measurements and other author ' s calculations, whereas stall angle, lift and drag beyond the stall angle are slightly under - predicted. the solver is used to investigate laminar and turbulent separated flows around a 6 : 1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces

    應用所開發的求解器，以naca0015翼型舵為算例計算了船舵在不同雷諾武漢理三;大學博士學位論文數下大舵角范圍內的三維粘性流場及水動力，成功地預報了舵的失速角和最大升力，並初步探討了雷諾數對舵水動力的影響;計算結果與現有試驗和計算數據比較，吻合程度相當好，初步檢驗和驗證了該求解器精確模擬粘性流動和計算水動力的能力。
  6. Now some universities and institutes of china have made some samples of the lunar rovers and theirs wheels, but until now the wheel ’ s mechanical performance is seldom researched and tested. this paper will analyze the mechanical performance of the wheel and design a test - bed to test the performance of the lunar rover ’ s wheel. firstly, the mechanical characters of the soil are separated to press - sinkage character and shear character based on bekker ’ s theory, and common press - sinkage and shear models are introduced and the theory of lankine passive earth pressure is also introduced

    根據bekker半經驗法的基本思想，將土壤的力學特性分解為水平方向的剪切特性和豎直方向的承壓特性，闡述了地面力學中常見的土壤的承壓、剪切等力學模型，並引入了朗肯被動土壓力理論，為建立車輪在松軟土壤中前進和轉向的力學模型奠定了基礎，同時進行了實驗土壤的剪切實驗，測量了土壤的內聚力和內摩擦角等參數。
  7. Resu1 t ana1 yzing and dec i si on support s } ' stem etc. first1y the who11 } construct ion of dianchi system is d i scus sed, t hen hydrodynami c mode 1 " geograph i c informat i on system ( gis ) image processing and network commun1 cat l on are s t u d i e d d e t a i 1 ed 1 v. two - - dimensi onal wind - - driven current s mode1 on shal1 ow water i s used as hvdrodvnamic mode1

    一個復雜系統的模擬實現，需要多種理論及技術手段的參與。滇池系統的設計涉及多個方面的內容，包括模型、數據庫、顯示系統、結果分析和決策支持等等。本文首先從系統的角度闡述滇池系統的組成，然後對系統中水動力模型、地理信息系統（ gis ） 、圖像處理和網路通信部分的設計過程進行詳細說明。
  8. In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method

    在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。
  9. So, optimization of breakwater planning is of great practical value and should be resolved immediately. at first, the paper narrates the development of numerical modeling, which includes shallow water dynamics theory and method, and compares the boussinesq model and mild - slope equation model. the purpose is to select one model that best fit for wave calculation in harbor engineering

    本文首先綜述了波浪數值模擬的發展概況，其中包括淺水動力學的常用理論和方法，並詳細比較了目前使用較多的boussinesq模型和緩坡方程模型，其目的是選擇其中較為適合港區工程波浪計算的模式，並將其作為優化模型的驗證或用於適應度計算。
  10. In the tidal estuary, the current is complex, and the flow is oscillatory. some experiential formulation has presented to calculate the vertical turbulent mixing coefficient. on the base of analysis of the hydrodynamic in the estuary, the theoretical equation, which describes the distribution of the space and time of vertical turbulent exchange coefficient, has developed, the equation has applied to the practice

    潮汐河口水流呈往復振蕩運動，本文在分析潮汐河口水動力特性基礎上，考慮了慣性力及重力等項的影響，通過理論推導得到潮汐河口垂向紊動交換系數的空間分佈及時間分佈的計算公式，以及垂向平均紊動交換系數的時間分佈的計算公式，並將其應用於潮汐河口的實際計算中。
  11. On the theory and method of farm hydrodynamics and hydrology and water resources system engineering, the paper covers three topics study about the techniques of farm draining ( topic one ), and soil moisture measuring and forecasting and drought preventing inforwaton system ( topic 2 ), and water resources optimal allocation ( topic 3 ), in the light of the flood and the drought and the shortage of water resources in the north of anhui province

    本論文採用農田水動力學、水文學、水資源系統工程的理論和方法，針對安徽淮北地區水旱災害頻繁和水資源緊缺現狀，進行了農田排水技術、墑情監測預報和抗旱減災信息系統和農灌區水資源優化配置技術等一體化研究。
  12. By calculating instability factor in research area, this paper gives some corresponding suggestion. this paper shows engineering instability around instrument foundation and coupling relation to the circumjacent seabed, and research the dynamic response between wave and seabed, and enriches the research content of instability of seabed around instrument foundation and give some appropriate suggestion to foundation planning of ocean engineering, also it prevents instrument, facility and property of state from losing and risking

    這篇論文揭示了構築物地基土的工程穩定性及與周邊海域互動禍合關系，研究了淺水區構築物底床在波浪等水動力作用下的動力響應，豐富了構築物周邊水下底坡穩定性研究的內容，為海上工程設施的地基設計提供了良好的理論指導性建議，對保障海上安全生產、保證海洋設施的完整及使國家財產免受損失也有重要的現實意義。
  13. Part three has expounded further the explorations investigated rs activities in it environment in several middle schools in lan zhou and the relevant analysis based on those. such aspects as it environment, schools, teachers, students and practice of pbl activities are investigated. it was found that those schools who have no any pbl activity are lack of finance, it facility, rs knowledge, consciousness for rs from leaders in schools, effective organizing activities for pbl, and teachers " research capabilities for pbl ; on the contrast, those schools who have pbl activities achieved many benefits such as students " improved capabilities of acquiring, analyzing, evaluating, and processing information, changes of students " traditional studying manners, students " advanced capacities of synthetically applying knowledge, communication and cooperation, students " developed creative intelligence and practice abilities on research, students " high social responsibility and courage facing to frustration, extended modern education concept and increased performance of teachers, update of schools " facilities, innovation of schools " management system

    在本部分，論文通過初步走訪調研、問卷調查，研究從信息技術環境、學校、教師、學生以及研究性學習活動開展的具體實施情況幾個層面進行了詳盡的調查，發現了在未開展活動的學校主要存在以下原因：資金短缺、信息技術環境落後；師生有關研究性學習活動的理論素養貧乏；學校領導思想意識不到位，對研究性學習活動的領導組織不得力；教師的業務能力、科研水平低下等原因；同時也分析了開展活動的學校在活動中取得的收益和存在的不足，其中收獲有：學生方面培養了學生獲取、評價、處理和分析信息等多方面的能力、轉變了學生的學習方式、培養了學生綜合運用知識的能力、培養了學生的創新精神和研究的實踐能力、增強了學生與他人交往、協同工作的能力、增強了學生的社會責任感以及面對困難、戰勝挫折的心理素質；更新了教師的現代教育教學觀念和意識，提高了教師的業務能力和素質；加快了學校教學設施的完善和更新，推動了學校各種管理體制、激勵機制的改革。
  14. With the sample of longitudinal motion equation, calculating hydrodynamic coefficients by the potential fluid theory is introduced

    並以其縱向運動方程為例，詳細介紹了用勢流理論求解水動力系數的方法。
  15. The research in this paper has been supported by the supercavitating hydro - mechanics theory on the super - velocity underwater weapon research program administered by the office of nation defense key lab fund ( contract 99js21

    本論文的選題來源於國防重點實驗室基金課題「超高速水中兵器的超空泡水動力原理研究」 （ 99js21
  16. The research in this paper has been supported by the super - cavitating hydro - mechanics theory on the super - velocity underwater weapon research program administered by the office of nation defense key lab fund ( contract 99js21. 1. hko302 ), and it is the important part of the program

    本論文的選題來源於國防重點實驗室基金課題「超高速水中兵器的超空泡水動力原理研究」 （ 99js21 . 1 . hko302 ） ，並是該課題研究內容的重要組成部分。
  17. For the vertical - axis variable - pitch cycloidal rotor, the article unify hydrodynamic performance symbol at first, classify and trim the calculation methods and formula of predicting fluid dynamical capability of water - power rotor and wind - power wheel that have been formed up to now

    對于可調角直葉擺線式水輪機，首先統一定義了水動力性能符號，將已有的水力與風力轉輪的流體動力性能理論計算方法和計算公式進行分類和整理。
  18. A hydrodynamic optimal method to enhance the energy conversion coefficient of the vertical - axis variable - pitch turbine is presented in this paper based on the analysis of the existing mathematical models, on the computational methods for predicting the hydrodynamic performance of turbines and on the available experimental results. by applying mathematical optimal theory, a mathematical model for optimizing the hydrodynamic attack angle of the blades of turbines is formulated and some numerical results are obtained as well

    本文在總結和研究豎軸可調角直葉水輪機水動力性能計算的現有數學模型，計算方法和實驗結果的基礎上，運用最優化理論，給出了改善和提高該種水輪機能量利用率的一種優化方法，建立了數學模型，並得到了計算結果。
  19. Then as a typical example some results drawn by using the introduced methods of the vertical - axis cycloid turbine are given and compared with the experimental data. the purpose is focus on the validation of the introduced methods what are the foundations of the hydrodynamic performance calculation and the optimal method

    然後以豎軸可調角直葉擺線式水輪機為例，計算了這種水輪機的各種水動力性能，給出了數值計算結果，對各種方法進行了分析並與已有的試驗結果進行了比較和研究，從而檢驗了各種理論計算方法的優缺點和可靠性。
  20. Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally

    摘要基於土的塑性極限分析方法，以均質土坡為例，從土釘支護結構的準粘聚力理論出發，綜合考慮土體自重、坡頂的條形荷載，以及土釘與土體的相互作用的機理，推導出了土釘支護的臨界高度的上限值和潛在螺旋曲線滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式，可供基抗支護設計參考。
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