混相流動模型 的英文怎麼說
中文拼音 [húnxiāngliúdòngmóxíng]
混相流動模型
英文
miscible flow model- 混 : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 流動 : 1. (液體或氣體移動) flow; run; circulate 2. (經常變換位置) going from place to place; on the move; mobile
- 模型 : 1 (仿製實物) model; pattern 2 (制砂型的工具) mould; pattern3 (模子) model set; mould patter...
-
Compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
主要有以下幾個部分: 1建立了兩相混和式電動機的穩態數學模型,分析了超前角對相電流及機械特性的影響,並同時進行了模擬研究,給出了一些有意義的結論。In the third chapter of this dissertation, based on the physical and chemical properties of hydrogen and the combustion characteristics of hydrogen, the quasi - dimension combustion calculation model of hydrogen ? fueled engine is set up through analyzing the characteristics of turbulence flame and chemical reaction kinetic of hydrogen ? air mixture. the model includes the dual ? area thermodynamics sub - model, quasi - dimensional turbulent entrainment combustion sub ? model, turbulence flame promulgating sub ? model, hydrogen - air mixture chemical kinetic sub - model and loss of heat transfer sub - model and so on
本文從氫燃料的物化特性和燃燒特徵著手,通過分析氫空氣混合氣燃燒的湍流火焰結構和燃燒化學反應動力學,基於雙區燃燒模型,建立了包括雙區熱力學、準維湍流卷吸燃燒、湍流火焰傳播速度、氫空氣混合氣燃燒化學反應動力學以及傳熱損失等模塊的燃燒模型,並給出了相應的計算方法。Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,並提出了相應的改進方法。In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value
第三章採用大渦模擬亞格子渦粘模型,對巖灘混流式水輪機的流場進行三維非定常湍流分析,得到了流場中各物理量的脈動特性,計算出ms的軸向水推力與模型試驗值大小相當;同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。Bone will produce electrical potential when subjected to deformation. it is necessary to research the role of the potential in bone growth, remodeling. according to the physiological structure of bone tissue, the biphasic porous medium model, which is based on the mixture theory in continuum frame, is established to depict the distortion and stress field of bone matrix, the flowing field and the resulting electric field when the bone tissue is subjected to outside force
=由於骨內應力能夠產生電位並促進骨的發生和重建,為明確其作用機理,論文在連續介質力學框架內的混合物理論的基礎上,根據骨組織的生理結構特點,應用兩相多孔介質模型來描述骨組織在受外界作用下的變形場、應力場、流動場以及由此產生的電場。Because of the influences of the turbidity, ph of raw water, current, temperature and the pollutions of raw water, the process of coagulant dosage is a very complex reaction. to find out the automation of coagulant dosage and reduce the cost of the coagulant, many domestic and international scientific research organizations make research into the theory and mechanism of automation of coagulant dosage, such as the streaming current control method ( scd ), the emulation experimenting method in spot, mathematics model, flocculation control device ( fcd )
由於受到原水濁度、 ph值、配水流量、原水溫度和其他水質污染的影響,投藥絮凝過程是一個非常復雜的反應過程,為實現投藥系統的自動化和降低混凝劑耗率,國內外相當多的科研機構和院校在進行投藥機理和自動化處理的研究,主要有流動電流儀檢測法( scd ) 、現場模擬實驗法、數學模型、顯示絮凝控製法( fcd法)等自動投藥方式的研究和實驗。Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a kaplan turbine has been carried out by using a full cavitation model and a mixture two - phase flow model
摘要採用一種完整空化模型和一種混合流體兩相流模型,對軸流式水輪機全流道內的定常空化湍流流動進行了數值模擬。Three models are proposed as follows by applying the model of " mixed flow " : the stress of increasing fluid on fouling, collision between solid particles and fouling, and solid particles movement velocity ; the effects of operating parameters, properties of particles, and the volume fraction of particles on stress in solid - liquid two phase flow, collision stress between solid particles and fouling, maximal contacting area between solid particles and fouling and maximal contacting time between solid particles and fouling are investigated systematically by calculating and theoretical analysis
利用「混流」模型,建立了兩相流體的剪應力模型、固體顆粒與垢層的碰撞模型和固體顆粒的運動速度模型;通過計算和理論分析,系統地考察了操作參數、顆粒物性、顆粒體積分率等對固液兩相流剪應力、顆粒對垢層的碰撞力、顆粒與垢層的最大接觸時間和最大接觸面積的影響。Using processed march cylinder, tapered circular mould, u - shaped instrument, l - shaped concrete fluidity instrument and some other testing instruments, and after research and study to physical and chemical property of various raw material. systematic tests have been carried out in respect of consistency between cement and additive, concrete fluidity, concrete filling - up - space and penetration capability and concrete anti - segregation property, basing on prudent and careful analysis to results of 34 - time tests a nd more than 500 data, and with utilization of combined additive, we finally conclude the proper mix design range for the self - densifying high performance concrete with ideal working performance at all respects
通過加工的march筒、截錐形圓模、 u型儀、 l型混凝土流動儀等實驗儀器以及對各種原材料的物理及化學性能展開詳盡的調查研究,進行了多種材料下的水泥與外加劑相容性、混凝土的流動性、混凝土的填充性和鋼筋通過性、混凝土的抗離析性等系統試驗,在對34組試驗、 500多個數據的詳細認真分析的基礎上,利用復合后的外加劑,得出各項工作性能均較佳的自密實混凝土所用原材料比例范圍。The cavitation flow in a nozzle at steady spray of a diesel engine was simulated, and the formation mechanism and distribution of cavitation inside the nozzle were analyzed using mixed multiphase flow model coupled with cavitation model
摘要利用混合多相流體模型加空穴模型的方法,模擬了柴油機孔式噴油嘴穩定噴射時嘴內的空穴流動現象,分析了空穴在噴油嘴內形成機理及其分佈情況。The control circuit of digitalized soft - starter with the three - phase ac voltage regulating was designed. the digital phase shifting trigger based on the 80c196kc mcs and gal16v8 programmable device was developed. the control method for digital phase shifting trigger was given and its principle of operation and designing was discussed
設計了三相晶閘管交流調壓數字軟起動器的硬體控制電路;研製了採用80c196kc單片機和gal16v8可編程器件構成的數字移相觸發系統;給出了數字移相觸發控制方法,分析和討論了該方法的工作和設計原理;採用了一種參數自整定的混合型模糊pid控制方法。Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method
給出了離散裂隙網路模型所依據的基本假定;發展了基於baecher模型的離散裂隙網路計算機隨機生成技術:詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式,發展了離散裂隙網路中穩態滲流的邊界元數值技術,並且討論了相關的具體數值技術細節,如角點的處理方法,單元的自動剖分等:描述了混合邊界元?管流模擬方法及其數值實現;研究了裂隙網路的簡化方法,並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。On the base of summarizing the results, the law of vertical turbulent mixing and transportation in the natural river is researched and applied in numerical model through the theoretical derivation combined with analysis of the data of measurement in this dissertation
本文在總結分析前人研究成果的基礎上,通過理論推導、現場資料分析和數值模擬相結合的方法,著重研究天然河流中物質的垂向紊動混合、輸移的基本規律,並將這些規律運用於數學模型的數值計算中。Measurement theory of coaxial line phase water cut meter and flowing feature of water oil two - phase flow have been studied in this paper. and it has been found that the response of coaxial line phase water cut meter is not only related to water cut, but also related to temperature, salinity of formation water and flowing characteristics. based on soft - measuring theory and operating theory of the meter, soft - measuring model of coaxial line phase water cut meter has been set up with directly obtainable facts such as flux, temperature of oil and water mixture and salinity of formation water
本文在對同軸線相位法含水率計的測量機理和油井兩相流動特性研究的基礎上,揭示出同軸線相位法含水率計的儀器響應除了與油井含水率有關之外,而且還與油水混合介質的溫度、地層水礦化度以及兩項流動狀態有關;結合軟測量技術理論和同軸線相位法含水率計本身的測量機理以及與儀器響應有關的可以直接測量的流量、油水混合介質的溫度、地層水礦化度等參數,建立基於同軸線相位法含水率計機理的軟測量模型。The influence of uneven flow between the gas and liquid was calculated by the drift flux model
採用漂移流模型來模擬計算氣液混合物內相間非均勻流動的影響。分享友人