scale model flow 中文意思是什麼
scale model flow
解釋
模型流動-
Typical variable windfield models, such as large scale steady wind flow, downburst, turbulence, airflow over mountain, are developed and their physical specialities are discussed. furthermore, simplex modules are integrated to form complex model. facticity and application technique to flight simulation are discussed
討論了以下幾種典型風場模型（大尺度均值風模型、 dryden紊流模型、微下擊暴流模型和過山氣流模型）的物理特徵與建模方法，並對單一模型進行復合，建立變化風場模型庫，最後討論了各種模型的真實性與如何應用於飛行模擬； 3 -
Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method
在地表徑流方面，文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型，並用其改進了陸面模式vic variable infiltration capacity中的徑流計算，該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面，文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型，文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型 -
Based on the theory of unsaturated soil mechanics and the properties of compacted expansive soil, this paper takes the northern part k12 + 840 - k12 + 920 of nanning urban highway as an example to studies some aspects of lime improvement of expansive soil and the technology of construction. the chief content of this paper is : the lime improvement mechanism of expansive soil ; confirm the technical parameters of lime mixed from the results of test in laboratory ; the scale - down test to define the maximum effective grain size of expansive soil when it is improved by lime ; by building bank slope model and making use of finite element seepage flow program of saturated - unsaturated to calculate the examples, this paper simulates the humidity site in order to checkout the effect of lime improvement ; studies and proves that it is feasible to mix blocky expansive soil and pulverous lime, and to fill roadbed by common construction machines etc.
本文研究的工作就下述幾個方面展開：用石灰改良膨脹土的機理；通過室內試驗確定摻灰的技術指標；在室內進行膨脹土摻灰的最大有效粒徑的模擬試驗，即鈣離子水試驗，由此總結出「粉?塊」灰?土攪拌工藝的有效性、合理性和可行性；用數值方法對路堤使用期的濕度場進行模擬，並與路堤的強度?變形的計算域耦合，以檢驗土性改良的效果，從而探索一種描述改良膨脹土路堤運行工況的數值方法；用現有最常用的且費用最低的施工機具，對灰?土進行「粉?塊」攪拌摻和及路基的填築施工等。 -
To provide necessary data for design bypass pipe, an enlargement to bi liu river reservoir, the following problems have been studied by hydraulic model and theoretical analysis : the energy losses in water head of the bypass pipe system and of the flow - control valve and their scale effects, measurement and calculation of the discharge of the bypass pipe system during the bypass pipe system operation with and without the new water power station, the hydraulic characteristics of the water tunnel and draw - off pipe, the flow rate of the aqueduct bridge and the draw - off pipe and the water elevation of the flow in the aqueduct bridge during the old water power station operation with and without the new water power station
大連市碧流河水庫供水工程取水頭部由引水渡槽、節制閘、進水閘、泄水閘等建築物組成。由於本工程場地條件限制，增設旁通管后布置非常緊湊，管道急轉角度大且轉彎距離較小，對于管內水流流態是否滿足要求，需要經過模型試驗進行論證，以確保工程的可靠性。旁通管具有上水與泄水要求，對其過流能力也要經試驗確定，為碧流河水庫增建旁通管設計提供依據。 -
In the 21st century, mass customization production has already become an important mode of contemporary manufacture enterprises with the growing drastic market competition and development of clients " individuation demands with large - scale enterprises as object, clients drive as leading, delivery time as aim, work flow management as means, enhanced enterprises " competitive ability as principle, this paper studies ordered enterprise work flow technology based on ebusiness / erp. it also suggests the prototype system, function frame and correlative model of mass customization enterprises, and constructs outside electronic business flat of mass customization enterprise centered on clients and enterprise information flat cored on operation flow
本文以大規模定製企業為對象，以客戶驅動為主導、以交貨期為目標、以流程管理為手段，以提升企業競爭力為原則，對基於ebusiness erp集成思想的定製企業工作流技術進行研究，提出了大規模定製企業的功能框架、相關模型及原型系統，構建了以客戶為中心的大規模定製企業外部電子商務平臺和以業務流程為核心的企業信息平臺。 -
This paper concludes that an indicator system based on eva, and assisted with mva, balance scorecard and eva driving factors can fulfill the required function ; 3. through discounter cash flow model, this paper decomposes key financial driving factors, which are competitive advantage period, the difference between the rate of profit and weighted average cost of capital, profit growth rate and the scale of invested capital ; 4. this paper concludes that the appropriate selection of financial management target, the establishment of financial appraisal model and financial performance indicator system, the decomposition of driving factors compose a complete framework to guide the enterprise in the process of striving for the sustainable growth
本文分解得出企業價值增長的關鍵財務驅動因素- -收益增長年限、回報率差、收益增長率以及資本規模，它們全面摘要涵蓋了企業戰略、籌資、經營、稅收、收益分配以及投資等各方面的活動: 4 .本文認為財務管理目標的恰當選取，財務評估模型和財務評價指標體系的構建以及驅動因素的分解，能夠有效地指導企業在追求持續增長過程中目標制定、目標執行以及評估反饋等各個層面的需求，並使得企業在實踐中能夠有效地進行戰略規劃和財務運作。 -
3. for the two - region model of one - dimensional solute transport through heterogeneous soils considering scale - dependent dispersion and immobile region under steady state flow, the numerical model is obtained by characteristic finite element method
對于穩態水流條件下，非均質土壤中考慮水動力彌散尺度效應以及不動水體存在時，一維溶質運移的兩區模型，建立了相應的特徵有限元數值模型。 -
Subsequently the reduced mechanism is used for three - dimensional numerical calculation in the flow solver technology of star - cd. 2. different from the one - step irreversible reaction, a multi - step reaction combined time scale model is developed to the solve combustion - turbulence interaction firstly
2考慮化學反應和湍流的相互作用，建立了有別于普遍採用的基於單步不可逆反應的混合湍流反應（時間）速率模型的新模型，即多步反應混合湍流反應（時間）速率模型。 -
The direct optimal model of multi - objective mixed discrete variables for lager - scale water supply system was established, by replacing complicated network hydraulic equation with nodal pressures macroscopic model and relationship model between pump stations flow and head in water supply systems without tanks or towers, genetic algorithm was developed to solve the direct optimal model
以測壓點壓力宏觀模型、水源供水量和水源供水水頭之間的關系模型替代復雜的管網水力平衡方程，建立了大型供水系統的多目標混合離散變量的直接優化調度模型。在沒有水池和水塔的供水系統中，利用遺傳演算法對直接優化調度模型進行求解。 -
Abstract : in light of thicker grain and smaller viscosity of debris flow, a segmented simulation of the debris flow with flume is presented. for the first time. more difficult resistance similarity is brought about by geometric rate without excessive coarsing and discontinuous similarity of sand grain composition in model is eliminated with different grain scale. on this basis the density similarity and sand conveying similarity are achived. the method presented is verified through a model test case
文摘:針對水石流顆粒粗，粘性小的特點，提出了利用水槽進行分段模擬水石流的設想，首次通過幾何變率解決難度較大的阻力相似問題，改變了以往過度加糙的方式;通過變粒徑比尺的方法消除了模型沙級配不連續相似的問題，較好地實現了固體物質級配相似，達到了泥石流的密度相似和輸沙相似.通過水槽概化模型試驗實例，對本方法進行了驗證 -
According to the gravity - elasticity similar law the model scale of bai shan pumped - storage hydroelectric plants is taken as the trashrack bar is made of zinc, the relative errors between its practical density and elastic modulus and its proper values are - 7. 82 % and + 1. 43 %, respectively. by lvs measuring the velocity distribution ahead the trashrack bar and on the basis of the velocity distribution the working conditions of the pumped - stroage hydroelectric plant are controled. the dynamic strain of the trashrack bar induced by flow are measured using strain slips
選擇白山抽水蓄能泵站攔污柵水彈性模型的主要比尺為_ l = 3 、 _ e = 3 、 _ p = 1 ，柵條用鋅板加工而成，模型材料的實際密度和應有密度的相對差為- 7 . 82 ，模型材料的實際彈模和應有彈模的相對差為+ 1 . 43 ，用激光流速儀量測柵前流速分佈，並用流速分佈作為控制工況的依據，用應變儀量測柵條應變。 -
The influence of aqueous phase trapping on gas flow by pore scale network model
孔隙網路模型法計算水相滯留對氣體滲流的影響 -
In this paper. flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied. according to characteristic analysis, the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model. on the basis of analog computing analysis and discussion of theoretical model. by means of pulse tracer method, experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level, feeding flow rate and circulation flow rate. the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4, the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series. an amendatory model has been established by the regression method
作者首先在對反應器進行特徵分析的基礎上，建立了描述中試規模多級外循環流化床生物反應器流動特性的串級全混流模型，並對理論模型進行了模擬計算分析和討論，在此基礎上，作者分別在無循環和有循環（改變示蹤劑用量、流加流量和循環流量）的條件下，利用脈沖示蹤法對一到五級串聯外循環流化床反應器進行了停留時間分佈實驗，結果表明，在循環流量與流加流量的比值達到大於等於4時，中試規模多級外循環流化床反應器的流動特性接近串級全混流模型，通過數據回歸擬合的方法，建立了中試規模一到五級串聯外循環流化床反應器的流動模型。 -
The hot dry rock geothermal energy is a r. ew clean energy and have excellent development prospects, but is not yet exploited on large - scale in our country then to mankind : the theories and technique of the heat extraction all belong to the new task in the new field, and already have a strong appeal to the international technology worker, and already have obtain certainly achievement, on the basis of study by our predecessors, this paper do the as follows work, acquire the following main result : lx present a many fields coupling mathematics model for solid - flow - heat of 3d blocked medium in hdr
高溫巖體地熱是我國以至人類尚未大規模利用而又極具廣闊開發遠景的新的潔凈能源，對其進行開發利用的理論與技術都屬于新型領域的新型課題，已經吸引了大批的國內外科技工作者的投入，並取得了一定的成果。在前人研究的基礎上，本文做了如下工作，獲得了如下主要成果： 1 、建立了高溫巖體地熱開發的塊裂介質固、流、熱多場耦合數學模型，模型控制方程包括完全耦合的變形方程、滲流方程、熱傳導與對流方程，描述了熱儲層的非線性特性。 -
The approach of physical model will take longer time and charge more money although it will give us some direct impression. because of the restriction by mode scale, velocity measuring is quite difficult. especially the flow feature is difficult to describe accurately
盡管物理模型實驗給人較為直觀的印象，但投資較大、周期較長，由於受模型比尺的限制，流速測量十分困難，尤其是水下流態難以得到準確描述。 -
Abstract : software reusability and workspace management are two key factors for the large scale scientific computations and application development. workspace management framework system is based on an object - oriented hierarchical model and provides applications with an effective development and management environment, including reusable application frameworks, functional components, and visual - language - based workflow editing. the system is also characterized by its direct - manipulated graphical interface, object - oriented application management, and data - flow - based task scheduler
文摘:大型科學計算領域需要良好的應用開發和管理環境，以提高應用組件可復用性為目標，規范應用軟體開發過程和計算工作流程.科學計算工作空間管理框架將應用組件作為基本對象，對其進行層次式管理，同時為應用組件開發過程提供有效的管理工具、可復用的應用框架以及基於可視語言的工作流編輯服務.它的可直接操縱的參數界面，基於對象的應用組件管理模式和數據流驅動的任務調度機制使其具有鮮明的特點 -
Abstract : based on the turbulent flow kinetics theory the paper describes astudy on two - region flocculation model, the turbulent region is the dominant effect of fiocculation speed, the transition region is the dominant effect of scale and compactness of floculating body, and the order magnitude of available energy disipation and controlling index is put forward
文摘:應用紊流動力學原理，分析紊流條件下兩區絮凝模型，提出紊流區主導絮凝速率，過渡區主導絮凝體的成長尺度及密實度，導出了有效能耗的量級及絮凝控制指標。 -
In the paper, an overview of transpiration cooled platelet and micro - scale theory is presented. the velocity slip model and the temperature jump model for the research on flow and heat transfer in the platelet micro - channel are developed. while programs developing, two dimensional temperature distribution of the fluid in the channel and one dimensional temperature distribution of the platelet are obtained
本文對層板發汗冷卻技術和微尺度理論進行了綜述，建立了溫度跳躍和速度滑移的微尺度研究模型，通過編寫程序，得到了微小通道內流體的二維溫度分佈和結構層板的一維溫度分佈。 -
According to the principle i. e. the investor obtains only the expected minimum benefit when npv is zero, based on the analysis of various factors effecting the cash flow of gas investment, the parameters related with the reserves are expressed as the function of reserve scale, and the mathematical model is developed to determine the gas minimum economic resources taking the resources as a variable and given npv is zero, which pro vides a decision making method for gas exploration invest merit
根據投資凈現值為零時投資者只獲得最低期望收益的原理，在分析影響天然氣投資現金流量各因素的基礎上，將與儲量相關的參數表示為儲量規模的函數，並以儲量規模作為變數通過令凈現值為零得到確定天然氣最低經濟儲量規模的數學模型，從而為天然氣勘探投資提供一種決策方法。 -
Considering the different definition of the junction and channel between the model of hydraulics and water quality, the automatic unking the model of hydraulics with water quality in any complex river networks is built up, with which based on the flow pattern from computation, the problem of water quality numerical simulation in large scale complex river networks can be solved ; 5
考慮到水力模型和水質模型對結點及河道定義的不同，建立了任意復雜河網下兩者間的對應關系及水力模型和水質模型的自動聯結，使河網中的水質計算問題得以用本文對應的水力模型計算的流量為基礎進行求解，從而解決了大型復雜河網中的水質計算問題。
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