hydraulics method 中文意思是什麼
hydraulics method
解釋
水力學方法- hydraulics : n. 水力學。
- 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】...
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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。 -
The relaxation iterative method of branch flow in tree - type river systems is extended to the loop - type river networks, which can turn the problem of any complex river networks hydraulics into the problem of a series of single river hydraulics ; 4
將樹狀河系支流流量的鬆弛迭代方法推廣為環狀河網支流流量的鬆弛迭代方法，從而實現了對于任意形式河網的復雜水力計算問題都化為一系列的單一河道的簡單水力計算問題。 -
Due to issues of dongting lake districts flood composition, the evolution of sediment flow, the river and lake ( r & l ) distribution characteristic as well as the layout of r & l - dredging engineering, the article simulated the model of the dongting lake terrain change by using the gis technology and adopted the limited volumetric method to establish the two - dimensional hydraulics computation model of lake in order to forecast the water level, the flow capacity, the speed of flow and changes of flow field after implemented the project, which have provided the reliable theoretic basis for the decision - making and implementation of renovation for river course, canal and harbor and river course - dredging engineering
摘要針對洞庭湖區的洪水組成、水流泥沙演變、河道湖泊水系分佈特點以及河道湖泊疏浚工程布局情況，利用gis技術模擬洞庭湖地形變化，採用有限體積法建立了湖泊二維水力學計算模型預測疏浚工程實施后的水位、流量、流速流場變化，為河道、航道港口整治、河道疏浚清淤等工程決策與實施提供了可靠理論依據。 -
2 the 1 - d hydraulics computational method and 2 - d shallow water equation are employed to simulate the processing of channel dredging in tai ping wan hydroelectric power plant. the results of model tests and numerical analysis are combined and compared each other
採用一維水力學計算方法和二維淺水方程對大平灣電廠尾水河道開挖工程進行數值模擬，從而使模型試驗和數值模擬結合起來，相互比較。 -
This thesis concludes the flood control situation, engineering measures and the situation of optimal dispatch method. it studies flood control engineering system, which is composed of flood prevention reservoir, river course dyke and natural detention basin, and the relationship between various flood engineering measures according to the composition and characteristics of the flood control engineering of the middle - lower reaches of beijiang. it suggests the objective function based on the least flood loss and the optimal dispatch strategy structure of the middle - lower reaches of beijiang bound with the requirements of the flood gradual progress equation combined with hydrology and hydraulics
本論文總結了我國防洪情勢、防洪工程措施及其優化調度方法研究的現狀；針對珠江流域北江中下游防洪體系的組成及其防洪工程的特性，研究由防洪水庫、河道堤防和天然滯洪區共同組成的防洪工程體系中各防洪工程措施之間的關系；提出了以洪災損失最小為目標函數、以水文學和水力學相結合的洪水演進方程等要求為約束條件的北江中下游防洪體系優化調度策略框架。 -
Strengthen and improve hydraulics service method to fit customers ' requirements
加強和提高液壓市場服務，以滿足客戶需求。 -
The non - linear partial differential ( integral ) equation often needs to be solved in the computational hydraulics, however, the mathematical theory of its numerical method has yet not been sufficient at present, for example, the development of some theories such as the strict stability analysis, error estimate and convergence proof has been unable to keep pace with the development of the numerical simulation method
計算水力學中所求解的是非線性偏微分（積分）方程組，其數值方法的現有數學理論尚不夠充分，嚴格的穩定性分析、誤差估計和收斂性證明等理論工作的發展還跟不上數值模擬方法的進展。 -
Depending on the theory of hydraulics, this paper describes the method for calculation and determination of the main parameters for establishing smooth and steady air cushion in air - cushion rugulator
運用流體力學的計算理論，論述了在氣膜調偏機中形成均勻穩定的氣膜的主要參數的確定和計算方法。 -
In order to avoid the difficulties arising from calculating the energy index k values of the reservoirs with hydraulics relations in the process, the coordinates rotation method is adopted to transfer the decision - making process for multi - reservoirs simultaneously to single reservoir alternate gradually
採用坐標輪換法，將多庫同時供、蓄水決策轉化為單庫逐次輪換決策，可有效解決具有水力聯系的多水庫能量指數（ k ）求解困難。 -
By analyzing flow status of fluid in aerating pipeline, giving up hydraulics and utilizing hydromechanics and advance numerical calculations, the prediction method to solve optimizations height on flow status in aerating pipeline is studied and put forward, which provides a scientific theory base to realize effective drag reduction and economic principle in blend phase transportation for pipeline design
摘要通過分析摻入少量高粘流體形成分層紊流層流的流動狀態，拋棄傳統的水力學研究方法，應用流體力學原理、高級程序設計語言和先進的數值計算技術研究了摻入少量高粘流體分層紊流層流減阻規律，為實現管道混相輸送時高效減阻和經濟節約的設計提供理論依據。 -
Based on the principle of hydraulics, the general equation for head loss and the formula for calculation of pressure head along the flexible hoses were worked out, and the method for determination of the maximum and minimum heads and their positions was given
摘要根據水力學原理建立了軟管沿程水頭損失的一般方程，得出了軟管沿程壓力水頭的計算公式，給出了確定最大和最小壓力水頭位置及大小的方法，從計算結果與試驗實測結果的對比看，具有一定的合理性。 -
A combined gauss main - element elimination method with compress - storage technique is proposed, which with the characteristic of less - storage requirement, small rounding off and high stability, and solved the problem of large storage requirements in solving large linear algebraic equations in river networks hydraulics, 3
提出了壓縮存貯形式的gauss列主元消去法，該方法具有存貯量小、舍入誤差小、數值計算穩定的特點，在一定程度上解決了河網水力計算問題中關于眾多線性方程組的存貯及其求解過程中可能面臨的困難。 -
6 ) the serviceability of water delivery network in each phase under earthquake is analyzed by simulation method and hydraulics theory
對城市供水管網震后各階段的服務功能可靠性進行了分析。 -
Based on the hydraulics series model experiments of the t type barrier stilling basin, the paper gives a full exposition to changing process of the current ' s flow regime of the t type barrier stilling basin and discloses the flow regime characteristics, the theory of energy dissipation, the shape optimization choice, the method on hydraulic design parameter and programme. what ' s more, it provides the expression of mathematics and key of the t type barrier stilling basin
本文通過t形墩消力池的水力學系列模型試驗，完整地闡述了t形墩消力池水流流態的演變過程，揭示了t形墩消力池的流態特性、消能機理、體型優化選擇以及水力設計參數方法及程序，並給出了t形墩池界限水深的數學表達式及解。
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