entrance flow 中文意思是什麼
entrance flow
解釋
進口氣流-
In this paper, the sensibility analysis of the factors affecting the temperature in well bore is relatively systematically made by using a large number of the data calculated with the borehole flow and heat transfer 3 ? d numerical model proposed by the author. the study shows that the thermophysical parameters of the drilling fluid and formation, etc. and the entrance temperature and circulating capacity, etc. of drilling fluid have a greater influence on the temperature in well bore. therefore, accurately mastering the thermophysical parameter values of penetrated formation and drilling fluid in well bore, considering the influence of the temperature and pressure on thermophysical parameters and accurately measuring such parameters as entrance temperature and discharge capacity of drilling fluid, etc. are of utmost importance for accurately simulating the temperature in well bore
利用由作者提出的井內流動和傳熱的三維數值模型計算所得的大量數據，文章對影響井內溫度的諸多因素進行了較系統的敏感性分析，研究表明：鉆井液和地層等的熱物理參數以及鉆井液的入口溫度、循環排量等對井內溫度有較大影響，因此，準確掌握所鉆地區地層和井內鉆井液的熱物理參數值，考慮溫度壓力對熱物理參數的影響，準確測量鉆井液的入口溫度、排量等參數值，對于井內溫度的準確模擬至關重要。 -
So according to the technology regulation of reclamation engineering, hydraulic calculation must be carried out in the design of final closure. this paper firstly introduces the progression and present situation of reclamation engineering, emphasizing on the features of present reclamation and on the experiences and theories of home and abroad ; using fortran perfects the hydraulic calculation program of the closure and makes the program to meet different conditions ( such as considering flood, the variation of time interval, multi - entrance, multi - reservoir capacity ), and after comparing and analyzing a great deal of schemes, the reasonable computation scheme was brought up ; the interface of the program was carried out by the programming language vb to make the process of calculation become easier and more distinct, so the result can be analyzed and handled more directly ; vb is used in the later management of the result to plot the graphic chart of the isoline of the maximum of hydraulic element ( the velocity of flow, the drop height and the rate of flow ) automatically ; finally it was applied in the reclamation project of dongbidao of fuqing
本文首先介紹圍海工程的發展進程與國內外圍海的開發現狀，重點介紹了我國目前圍海工程的特點及在圍海工程實踐中積累的經驗和理論；利用fortran語言完善堵口工程龍口水力計算程序，使程序可以滿足圍海工程復雜工況下（如考慮內港洪水、計算時段的變化、多口門、多庫容、多水閘）的龍口水力計算，並進行大量方案的比較和分析，提出合理計算方案；利用面向對象的可視化編程語言vb進行界面開發，使計算過程有良好的人機界面，更直觀地對計算結果進行分析和處理；計算結果的后處理採用vb編程實現龍口水力要素最大值等值線圖的繪制；並運用所編軟體對福建省福清市東壁島圍墾工程進行龍口水力計算，為堵口合龍提供科學依據。 -
Seawall and sluice are the parts constructed in advance, while final closure is the last part in construction. the hydraulic condition during the final closure process is worse than that during any other processes. and with the compressing of the entrance, the hydraulic condition becomes badly, the drop height of entrance can reach 2 to 3 meter, the maximum velocity of flow even reaches 6 to 8 meter per second and flow condition also becomes complex
海堤和水閘的修建都是圍海工程先期施工的部分，堵口則是海堤修築的最後階段，堵口合龍成敗關繫到圍海工程成敗，由於此階段所遇到的水力條件十分惡劣，口門落差可達2 3m ，流速最大可達到6 8m / s ，且水流極其復雜，根據我國《圍海工程技術規范》規定圍海堵口必須進行龍口水力計算。 -
In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用 -
In this paper, we study the most serious damming section of the east - one main canal, which is from the entrance of the hao wan flume ( chainage12 + 123. 6 ) to the exit of shang tian yuan tunnel ( chainage24 + 091. 1 ). the main content is analyzing the flow characteristic of the canal, setting up mathematical model of the discharge condition of the east - one main canal, according to the survey section and actual roughness factors, building, bend and so on, we divided the canal into more than loocaculation segments. each segment is calculated by microsoft excel electrical table through computer as permanent transition flow of non - prismatic channel
本論文研究的渠段為陸渾灌區東一乾渠壅水最為嚴重的渠段，從郝灣渡槽進口（樁號12 + 123 . 6 ）至上天院隧洞出口（樁號24 + 091 . 1 ） ，其主要內容是，分析渠道水流特徵，建立東一乾渠輸水狀況的數學模型，根據測量斷面及實際糙率、建築物、彎道等因素的不同，將渠道劃分成120多個計算段，每段按非稜柱體恆定漸變流，運用microsoftexcel電子表格進行編程計算。 -
Numerical simulation and analysis of polymer melt filling flow driven by a periodically oscillating entrance pressure through the extrusion die with an irregular cross - section
振動場作用下聚合物熔體在異型材擠出口模內的充填流動分析 -
To improve the flow pattern and discharge capacity of the spillway of bashan hydropower station, the left guide wall ' s form of the spillway ' s entrance channel is optimized by series of model tests
摘要為改善巴山水電站溢洪道進水渠流態、提高泄流能力，通過一系列試驗優化了溢洪道引水渠左導墻頭部曲線型式。 -
The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments
對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。 -
The models are obtained by simulating and simplifying the big curve at the arch of aorta and opposite curve of branching vessels. the original conditions of simulation calculating are the entrance velocities and the exit pressures. the boundary conditions are the wall non - slippery flow conditions and the symmetry conditions
它是基於主動脈弓處的大彎曲和分叉血管的反彎曲進行模擬簡化，模擬計算的初始條件是進口速度和出口壓力，邊界條件是壁面無滑流條件和對稱性條件。 -
A simulation is carried on three swirling flow with different nonaxisymmetric tangential injection in a horizontal straight pipe to find if neglect their deflations whether they equate to axisymmetric module. a conclusion can be found that when nonaxiwymmetric conditions are occurred, there will be deflections near entrance that are different from axisymmetric condition, and these deflections will be erased on area far from entrance
另外對水平圓管中三種非軸對稱切向入流按軸對稱近似計算時進行數值比較分析，發現三種非軸西安理工大學碩士學位論文對稱切向入流條件下在近入口處出現很大的偏差，這種偏差不能忽視;而經過充分的發展之後，這種差別將被抹平，即在離入口較遠的區域各種情況的計算結果與軸對稱條件比較差別不大。 -
Relaxation factors are adopted. a program is produced to simulate swirling air flow in a horizontal straight pipe and compare with experiment data. the simulation prove that the modified k - model can predict the core, annular and wall regions near entrance and axial velocity far from entrance, but it ca n ' t predict tangential velocity well in weak swirling area far from entrance
編程計算水平圓管內螺旋氣流的流動參數並與實驗數據對比，結果表明修正-湍流模型在近入口處基本上能預測出中心區、環形區和近壁區的流動特性，在遠離入口弱旋流區域對軸向速度的預測符合實際情況，但是出現對周向速度修正過大的現象。 -
Through the pneumatic experiment of resemble model, it was discovered the fact that the flow speed was 1. 34 times faster than the natural wind speed at 565mm to the entrance section ( 37. 8 % of the length of diffuser in axial spacing ), and flux energy increased to 2. 41 times of the same area
在相似模型的氣動特性實驗中，發現了在距相似模型入口565mm處（擴散管軸向長度的37 . 8 %處） ，氣流流速是前方相同面積來流風速的1 . 34倍，氣流動能增至前方相同面積來流風能的2 . 41倍。 -
Under the different structures " combination, the article had researched the change of the fr from the entrance to the exit of the tortuous path, and obtained the properties of the torrent and slow flow in the tortuous path
研究了不同結構組合條件下，從彎道進口到出口的f _ r數變化，進而得到彎道內急流和緩流特性。 -
At the entrance of the rotating curvilinear pipe, both the development of flow structure and temperature distribution depend on f and the characteristic quantities of flow and heat transfer change obviously
在曲線管道的開口端，流場結構的發展過程與f密切相關，開口端各流動特徵量變化十分顯著。管道的摩擦系數比沿軸向變化與入口類型以及旋轉條件密切相關。 -
In this paper, maccormack explicit time - split scheme, baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions. the results show, in the same entrance condition, the operating mode of scramjet combustor is influenced by the control of fuel
本文採用maccormack顯式時間分裂法、 b - l代數渦粘性湍流模型及氫-空氣兩步非平衡化學動力學反應模型，模擬了在不同的飛行馬赫數條件下，固定幾何的雙模態燃燒室在不同供油規律下的二維燃燒流場。 -
The model controls the dynamic security of network information flow on four layers : security entrance layer requires user authentication and encapsulates security information flow ; social intelligence layer makes information flow to have the ability of self - sensing self - protecting and self - adjusting ; business layer carries out business logic in forms of transactions which can be submitted, processed and roll back, in order to provide real - time protecting and online recovering ; tcp / ip security layer ensures security communication for information flow
該模型分4個層次控制網路信息流的動態安全；安全入口層負責用戶的身份驗證和信息流的安全封裝；社會智能層賦予信息流自我感應、自我保護、自我調控的行為能力；事務層實現商業事務的提交、處理、回滾，提供實時保護和在線恢復機制； tcp / ip安全協議層則保障網路信息流的安全傳輸。 -
Also, the chamfer of the stay vanes entrance and the surface roughness of the flow channel were optimized by the numerical investigations
亦對固定導葉入口沖角、渦殼壁面粗糙度對流動的影響進行了定量分析。 -
The contrasting analysis is carried out against approximate calculation, numerical simulation and the real measuring result of flow - in direction stress along the die - entrance in the rectangular drawing. it is considered that in the condition of non - uniform solution, part calculation has credibility to some extend
摘要針對矩形盒拉深中凹模口流人方向應力的近似計算、數值計算和實際測量結果進行了比較分析，認為在尚未得到統一解的情況下，分割計算具有一定的可信度。 -
Based on the test result of hydraulic model of a project, this paper analyzes the influences of gate operation during operating period, combined operation of hydro - generation sets and the length of guide wall on navigable flow condition in entrance area, and proposes the operation mode of the hydro - junction for improving navigation flow condition
摘要根據實際工程的水工模型試驗資料，分析樞紐工程運行期的閘門調度、機組組合運行和導航墻長度對口門區通航水流的影響，提出改善通航水流條件的樞紐運行方式。 -
Facing a market of intense competition, the demand of improving core - competence of port, the building of a big commodity flow, the chance brought by china " s entrance of wto, in order to lower the risk of port management and furthermore improve port competition force, we must apply diversification strategy to port development
面對著激烈競爭的市場和港口需要提升核心競爭力的呼聲，面臨著建設大物流和中國加入wto的機遇，為了降低港口經營風險，更為了提升港口競爭力，港口發展多元化經營勢在必行。
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