equation of through flow 中文意思是什麼
equation of through flow
解釋
連續性方程-
In the model the film thickness in the passage was obtained at first using two phase flow theory ; then, similar analysis solution of concentration distribution of the pollutant in liquid phase and biofilm was obtained through mass component equation of pollutant in gas - liquid phases combined with the biochemical kinetic equation of mass transfer in biofilm and dismission of oxygen limited ; at last, the distribution of pollutant along the filter height and the waste gas purification efficiency were obtained
該模型首先運用兩相流理論獲得了通道內液膜厚度，然後通過污染物在氣相、液相的質量組分方程，結合生物膜內的傳質與不?慮氧限制的生化反應動力學方程，獲得了污染物在液相和生物膜中濃度分佈的近似分析解，最終得到污染物在氣相中沿塔高的濃度分佈及廢氣凈化效率。 -
Through examination of the recession limbs of the observed hydrographs, during periods with no rain and thus no surface runoff, one can determine the value of. for this catchment, a value of 0. 8 is obtained. the simulated subsurface runoff at each grid is routed to the outlets through a unit - hydrograph method for overland flow and the linear saint - venant equation for channel flow to get the discharge at xixian station
對所研究的流域而言，經過估算消退系數為0 . 8 .耦合著這兩種不同地下徑流機制的clm模型都可以計算出每個網格的地表地下徑流深，採用dag lohman 34 ， 35發展的匯流模型進行匯流由於是研究地下徑流，所以取每個網格的地表徑流為0 ，該模型採用單位線計算坡面匯流線性聖維南saint - venant equation進行河道匯流 -
However, it lacks runoff data in absolutely most areas where culvert and small bridge locate. some traditional design method, such as the methods of statistic zone parameter, modification by catchment area, rainfall - runoff, reasoning formula and empiric equation et al, are used to estimate flood flow through culvert or bridge
然而，絕大多數中小橋涵所在地卻沒有可利用的徑流資料，通常採用統計分區法，面積改正法、暴雨徑流法、推理公式和經驗公式等傳統設計方法，這些方法一般比較繁瑣、精度較低、設計的流量偏大，導致工程造價偏高而浪費資金。 -
It has a long history using a throttle device to measure the flow volume of fluid in pipe the method has formed normalization at home and abroad the principle is to make the flow bunch form the particial shrink at the place where the throttle part is located so as to produce a static pressure difference then measure and calculate the flow volume at the moment when the fluid is flowing through the throttle device by the static pressure measured this method is based on the law of conservation of energy and the equation of flow continuity
用節流裝置測量管道中流體流量已歷史悠久，在國內、國際上都已標準化，其原理是使流束在節流件處形成局部收縮，產生靜壓力差，通過測量靜壓力差來衡量流體流過節流裝置時的流量大小，這種測量方法是以能量守恆定律和流動連續性方程為基礎的。 -
The formulation for the flow model is given using the finite element / control volume ( fe / cv ) technique based on darcy ' s law of creeping flow through a porous media. the heat transfer model is based on the two - dimensional, transient heat conduction equation, including heat generation. the cure kinetics model is based on kamal ' s model, and the degree of the resin cure as a function of temperature and time
樹脂流動階段的模擬是根據牛頓流體在多孔介質中的滲流理論，應用darcy定律並使用有限元/控制體技術建立起來的；熱傳遞模型是一個二維瞬態熱傳導方程，考慮樹脂反應放熱；樹脂的固化模型利用了kamal提出的固化動力學方程，將固化度取為時間和溫度的函數。 -
The flow propagates northward and marches across the equation, then passes through the trough of summer monsoon over south china sea and finally gets to the yangtze river valley, which sequentially effect the southwest airflow of the west side of subtropical high
（ 3 ）在副高西伸過程中，南半球澳大利亞高壓北側的冷空氣向北推進，經向風擾動持續向北傳播，從而影響副高西側的偏南氣流。 -
The main studies of this thesis have been focused on the mass transport phenomenon in the hollow fiber membrane contactor, including the development of the model of the gas diffusion through the microporous membrane, the analytical solution of the shell side mass transfer differential equation in an orderly packed parallel flow module, the calculation of the shell side flow distribution in a randomly packed module, the estimation of the influence of the random arrangement of the fibers on the shell side mass transfer, and the experiments of the absorption of co2 into water
膜接觸器是一種通過膜作為兩相之間的分離界面而實現相間傳質的雜化膜過程。本論文主要研究中空纖維膜接觸器的傳質行為，研究內容包括氣體通過微孔膜擴散模型的建立、中空纖維膜均勻分佈的平行流組件殼程傳質微分方程的解析求解、中空纖維膜不均勻分佈組件中流體分佈的數學計算、中空纖維膜不均勻分佈對殼程傳質影響的估算以及co _ 2氣體吸收實驗。 -
Then the flow field of the falling film can be simulated through dispersing the integral equation and using numerical methods. comparing the flow field of computation under the fluctuant state with which under static state, the conclusions can be drawn that the fluctuant movement has a very important effect on the movement of falling film
把數值模擬的流場和靜止狀態下的流場進行對比，得出了搖擺運動對管內液膜流動具有非常重要影響，相應地對吸收器吸收性能也具有非常重要的影響的結論。 -
In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained
本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好 -
These landslides go with fluidization peculiarity different degree in course of their motion, and their speed and distance increase several times because of the fiuidization, thereby the disaster area greatly broaden. on the base of above, the paper studies systematically the fluidization of large high - speed rockslides in all its aspects : analyzed the aerodynamic effect in the short - range on the base of the wind turmel experiment, studied the effect of falling into pieces when landslides collides mountain ; studied the accelerating effect through high - speed collide experiment of landslides model ; and the paper reappear the overall process including set - out, collide in the short range, debris flow in the long - range of touzhai large landslide via distinct element method ( dem ), studied the flow law and equation of different type of debris flow resulted from large landslide. as a sample to apply, the paper analyzed fluidization mechanism of touzhai landslide
基於這一點，本文對大型高速巖質滑坡的流體化現象進行了全面而系統的研究：通過風洞模型實驗，研究了大型高速滑坡凌空飛行階段的空氣動力學效應，研究了飛行中滑坡巖體在與途中不動山體發塵碰撞時的解體破碎效應，通過滑坡巖體高速碰撞模型實驗研究了滑坡巖體解體破碎後部分巖體的加速運動效應，並應用離散單元法再現了雲南頭寨溝大型滑坡啟動高速、近程碰撞、遠程碎屑流運動的全過程，研究了巖體解體破碎后形成不同類型碎屑流的運動規律及運動方程，並對頭寨滑坡流體化運動機理進行了實例分析，取得了以下主要結論和成果： （ 1 ）對于大型高速滑坡，大多在啟程活動階段已獲得了高速，這使得這類滑坡在其離開剪出口之後以凌空飛行的形式向前運動，在其飛行過程中，滑坡巖體與空氣強烈作用，並產生空氣動力學效應，滑坡巖體在因碰撞而產生的解體破碎效應及部分巖體的加速運動效應的作用下，在遠程活動階段，以高速碎屑流的形式向前運動。 -
After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent
本文在對風力機和雙饋電機進行了數學分析后，給出了功率在風力機和雙饋電機中的流動過程圖解，同時給出了雙饋電機的穩態等效電路；然後，經過坐標變換，進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖，並藉助通用動態等效電路的形式，得出了便於定子磁鏈分析的不對稱等效電路。 -
The flow through the throat - type energy dissipator and the right - angle energy dissipator are calculated by using the two - equation turbulence model, which is expansively used to simulate the flow field successfully. the principal content and the achievement are concluded as follow : as a kind of internal energy dissipator in which the turbulent flow is contracted and expanded abruptly, throat - type energy dissipator was regarded as one of the potential energy dissipator for its many advantages, such as stable flow pattern, simple structure, easily controllable flow parameter, and anti - cavitation property
結合實體試驗，利用k -模型對當今尚處于起步階段的新型消能方式?洞塞消能工和直彎消能工進行了數值模擬研究，主要內容和研究成果如下： 1洞塞消能作為一種突縮突擴式的內流消能工，具有流態穩定、結構簡單、水流參數易於控制及防空化性能等優點，是一種很有發展潛力的消能方式。 -
Through application investigation of dosing subsystem and utilizing principle of fluid mechanics ( bernoulli equation ), quantitative dosing device was produced to measure chemical dosage, so as to settle the problem that metering pumps and electromagnetic flow meters widely used in water plants now have a very high requirement in technique and a very high cos t in maintenance. this device is easy to control, simple in maintenance and low in cost ; functionally it can substitute for metering pumps and electromagnetic flow meters used in system
通過對投加子系統的應用研究，針對目前在水廠普遍使用的投加計量泵、電磁流量計技術要求和維護維修成本高等問題，運用流體力學（伯努利方程）的原理製作定量投液裝置對藥液加量進行投加計量；該裝置易於控制，維護維修簡單、成本低廉，功能上能取代系統中使用的計量泵和電磁流量計。 -
We studied four eddy viscosity models ( evm ) and three nonlinear easm models in detail. the two - equation turbulence models are validated through simulating the flow fields over flat plate, airfoils and onera m6 wing. the capabilities of different turbulence models are accessed in this study
加入兩方程湍流模型后，通過對平板、翼型、 oneram6機翼等繞流流場的數值計算，驗證了加入的各湍流模型的準確性，測試了它們對不同湍流流場的預測能力。
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