unsaturated flow 中文意思是什麼

unsaturated flow 解釋
不飽和流動
  • unsaturated : adj. 未飽和的；不飽和的。 unsaturated compounds 不飽和化合物。 unsaturated steam 未飽和蒸汽。
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. Buckingham recognized the analogy between potentials in unsaturated-flow systems and in other flow systems.

    白金漢認為在非飽和水流體系和其他水流系之間的勢有相似性。
  2. 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
  3. 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。
  4. Darcy's law can be applied to unsaturated flow subject to certain restrictions on seepage velocity.

    達西定律也適用於滲透速度有一定限制的非飽和水流。
  5. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。
  6. ( 3 ) when evaporation was stopped during the process of soil water redistribution, soil water would move downslope by gravity. when evaporation was in process, due to low initial water content, most infiltrated water from small intensity and amount of rainfall would be consumed by intensive evapotranspiration during rainy season, and lateral downslope unsaturated flow seldom took place. however, soil water would move downslope by gravitational and matric potential gradients after continuous rainfall

    （ 3 ）在防止蒸發條件下，再分佈過程中，土壤水分在重力的作用下有沿坡向下運移的趨勢；在蒸發條件下，由於初始含水量一般較低，雨季量小且分散的降雨極易為強烈的蒸發蒸騰所消耗，側向沿坡向下流難以發生，但在持續的降雨條件下，土壤水分在重力勢和基質勢梯度的作用下易沿坡向下運移。
  7. The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon

    闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點，提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。
  8. The inclusion of unsaturated flow in groundwater modelling is important for obtaining physically realistic analysis results

    地下水模型中包含非飽和水流對于採用實際的物理分析結果非常重要。
  9. The ability to model unsaturated flow allows seep / w to handle a wider range of real problems than many other seepage software products

    同許多其他滲流軟體產品相比，本產品能夠通過模擬非飽和水流從而具有解決更廣泛的實際問題能力。
  10. One - dimensional perturbation solution of the problem about the unsteady fluid - solid coupling seepage in coal methane unsaturated water flow phase

    煤層氣非飽和流階段非穩態流固耦合滲流的一維攝動解析解
  11. Rainfall infiltration induces rock slope to slip by mostly changing seepage flow field in unsaturated zone of slope, and infiltration under different rainfall degrees is special instance of rainfall infiltration

    摘要降雨入滲主要是通過改變巖體邊坡非飽和區滲流場引發邊坡發生滑坡的，而不同降雨強度下的入滲又是降雨入滲的特例。
  12. Advances in numerical simula tion of two - phase water and air flow in unsaturated zone

    氣二相流數值模擬研究進展
  13. Seep / w is a general seepage analysis program that models both saturated and unsaturated flow

    是一個通用的滲流分析程序，模擬了飽和和非飽和流態。
  14. They facilitate blood flow, maintain normal blood pressure, and strengthen the immune system. suitable amounts of poly - unsaturated fats can reduce levels of both harmful and beneficial cholesterol in the blood

    適量的多元不飽和脂肪酸可降低血液中的膽固醇（包括有益及有害的）水平。
  15. Water moves across the soil surface away from the drip emitter until the infiltration rate of the ponded area matches the emitter discharge rate. beyond this free - water pond water moves into the soil by unsaturated flow. it is very important to research the characteristic and pattern of trickle source infiltration

    滴灌條件下水分運移的本質是微源入滲過程，因此，為了充分發揮滴灌優勢，正確調控作物的土壤水分條件，對微源入滲特性規律的研究非常必要。
  16. Under unsaturated condition, the duration of the transport process was obviously prolonged, peak value of the breakthrough curve raised, the preferential flow was not significant and the curve was gently

    在非飽和條件下，硝態氮運移過程的時間明顯加長，穿透曲線的峰值增高，優先流不明顯，穿透曲線平緩。
  17. Saturated and unsaturated groundwater flow numerical simulation in large scale zone

    非飽和地下水流運動數值模擬
  18. In the doctoral dissertation, thorough studies on determination of unsaturated hydraulic parameters of fracture through experiment and numerical simulation, mechanisms of unsaturated seepage flow in fracture, analysis of saturated - unsaturated seepage flow in fractured rock mass due to surface infiltration and influence of surface infiltration to the stability of rock slope are made. and the above mentioned research achievements are applied to the analysis of real large - scale project

    本文就單裂隙非飽和水力參數的試驗測定和數值模擬確定、單裂隙非飽和滲流的機理、有地表入滲的裂隙巖體飽和非飽和滲流分析以及地表入滲對巖坡穩定性的影響等方面展開了較為深入的研究，並將上述研究成果應用於實際大型工程問題的分析中。
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