質量流動速度 的英文怎麼說
中文拼音 [zhíliángliúdòngsùdù]
質量流動速度
英文
mass velocity- 質 : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 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...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 質量 : 1 [物理學] mass 2 (產品或工作的優劣程度) quality 3 economy (離子源的); 質量標準 quality level...
- 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
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎,利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和透射邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。The hydraulic gradients of settling slurry flow transported in three kinds of moving states, i. e. suspension, saltation, or partially suspension were investigated, based on analyzing the changes of solid particles and water in momentum, velocity and their mass related to momentum exchanging over the acceleration period of the solid particles
從固體顆粒加速期間清水與固體顆粒的速度變化、動量傳遞、相關質量等基本問題分析入手,研究了沉降性漿體在水平管道內流動時其固體顆粒在3種流動狀態下的水力坡度,提出了沉降性漿體在水平管道內流動的機理模型,進而用該模型對一些輸送條件下的沉降性漿體的水力坡度進行了計算。Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller, the continuously linear variable voltage controller, the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers. the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs. the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed
根據磁流變阻尼器特性和對懸架系統動力學特性的規律性研究,為磁流變阻尼器設計了基於「天棚」阻尼控制概念的「 on - off 」 、線性連續和修正的線性連續控制策略,基於「地棚」阻尼控制概念的磁流變阻尼線性連續控制策略, 「天棚」阻尼和「地棚」阻尼控制概念線性組合起來的磁流變阻尼混合控制策略,根據模糊控制原理設計了以簧載質量和非簧載質量間相對位移或簧載質量加速度分別作為輸入變量的模糊邏輯控制器用於磁流變阻尼半主動懸架的智能控制。Whether sand can saltate from sand bed surface and quality of sand incipience are very important to the sand transport and the form of wind - blown - sand
沙粒能否起動以及起動質量如何,如起動初速度、起動角度等參數都直接關繫到沙粒的輸運和風沙兩相流形成。To avoid manual labor of chiseling - grossness, in the area of second - stage concrete construction, permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete. substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars, and safety of construction and stability of quality, and greatly reduce cost. it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction
混凝土縫面處理採用高壓水流沖毛技術,大大提高了施工工效,減少了倉面污染;模板工程大量採用定型鋼模板施工技術,提高了壩體混凝土成型質量和工程進度;在二期混凝土施工區域,為免除人工鑿毛勞動強度,採用永久性免拆金屬模板網作為一期混凝土模板;鋼筋連接改進傳統的電焊連接方式,採用大量採用鋼筋接頭機械連接技術,有效提高了接頭強度和鋼筋連接速度,施工安全性大大加強,質量穩定性有效提高,經濟成本大大降低;三峽二期工程持續高強度混凝土施工系統工程的研究,使三峽工程成為名符其實的「世界一流工程」成為可能;三峽二期工程混凝土溫控綜合技術的應用,有效降低了壩體混凝土溫度的產生;混凝土表面處理及裂縫處理技術的應用,提高了建築物的整體性和耐久性。Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability
基於磁流體所具有的特殊性質,將磁流體添加到伺服閥力矩馬達的工作間隙中,一方面磁流體被磁化后可增大銜鐵的阻尼力,減少振動;另一方面由於力矩馬達氣隙中磁導率的提高,使氣隙中的磁通量增大,力矩馬達的磁路效率和輸出扭矩將增大,因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。The 3d anti 3c seismic processing flow established is used in processing of the real seismic data, achieving high quality velocity ratio spectrum and good non - hyperbolic nmo correction and stacking of 3d converted wave
應用所建立的三維三分量地震資料處理流程,對某實際地震資料進行了處理,得到了較高質量的三維轉換波速度比譜,轉換波非雙曲動校正和疊加取得了較好效果。As to the simulation, three - dimensional n - s equations and two - phase flow model, in which the liquid toluene spray as discrete particles was considered, were employed to describe the turbulent combustion processes in the combustion chamber. the mass and energy transfer between the two phases were calculated by the droplet evaporation model, and the arrehnius model was used to obtain the gas chemical reaction rate. the details of 3d flow field, the distributions of temperature and compounds were obtained by solving the equations
數值模擬方面,應用三維湍流n - s方程以及顆粒軌道模型描述了激光器燃燒室內部的噴霧兩相燃燒流動過程,兩相之間的質量、能量交換由液滴蒸發模型計算,氣相化學反應速率由arrhnius公式計算,通過耦合求解氣液兩相模型方程,模擬了燃燒室三維流場,得到了燃燒室內的溫度和組分濃度分佈。According to gaseous " molecular kinetic, the mass diffusion rate is within finite value. so theoretical conclusion of mass flux ' s producing and the essential relation of flux vs. force could be drawn. with the assumption that local density states in near equilibrium and the distribution is gradual changed, the classical first pick ' s law was modified considering mass relaxation time
根據氣體分子運動論對質量傳播速度為有限值情況下的質量流的產生及流與力之間的本構關系作了理論推導,在假定局域濃度處于近平衡態,其分佈為漸進的情況下得到了考慮質量鬆弛作用的經典fick第一定律的修正式。Experiments on the gas flow patterns in the flowmeter prove that the algorithm used in arm digital gas mass flowmeter is capable of significantly improving the sensitivity of the heat sensor, hence superior in terms of the measurement of gas mass flow
並將此演算法應用於以arm處理器為核心的數字式氣體質量流量計中實驗證明,該方法能夠明顯改善熱式傳感器的動態響應速度,實現其快速補償。To search for high - velocity molecular emission toward massive star formation regions, and to study the connections between h2o masers, iras objects and outflow properties, we carried out a co observation for a h2o maser sample. we found that most of the objects have excess high velocity emission produced by outflows ; we find a significant correlation between co line full widths and iras luminosities. the widths are proportional to the iras luminosities
通過在大質量恆星形成區搜尋高速分子輻射,並且研究它們與星際h _ 2o脈澤源和所聯系的紅外源之間的關系,我們發現絕大多數源都存在著氣體的高速運動並且它們是由分子外流產生的;我們同時發現在co分子的譜線全寬和所對應源的紅外光度之間存在很好的相關性,線寬隨紅外光度增加而變大。Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process
在相同的注射條件下,通過分析喂料在不同直徑和長度流道中的流動規律,得到了喂料在流道中的速度場、壓力場和溫度場,找到了流道長徑比的合理取值范圍,並得出通過改變流道設計可實現對現有設備資源充分利用的結論;給出了不同注射壓力下,型腔壓力與充模時間關系曲線和喂料熔體平均充填速度與充模時間關系的曲線,得到了注射壓力對充填時間和型腔壓力的影響規律,確定了最佳的充模時間、注射時間和注射壓力;通過分析採用不同位置澆口注射時注射件關鍵位置單元的流動速度和壓力分佈,預測了注射件的成形質量,或可能產生的注射缺陷及位置,優化了澆口設置。During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中,模擬結果表明,保壓時間是影響製件成形質量的關鍵因素之一,擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大,需進行參數之間的協調,只有當變形區內部始終維持準固態時,才能實現穩定的液-固擠壓成形過程;在變形場的模擬中,根據液態浸滲擠壓的成形特徵,選用了雙曲正弦剛-粘塑性有限元計算模型,研究了變形過程中應力應變場的變化規律,研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。It will be useful to increasing drying - rate, improving drying quality and decreasing energy consumption in heat - air and vibrating fluidisation drying the distillerys grain and the damp sticky substance
這對于熱風乾燥、振動流化床乾燥和組合方式下乾燥酒精糟等高濕高粘物料,在提高幹燥速度、乾燥質量和減少能耗等方面具有重要的指導意義。Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming
模擬的主要內容是在各種過程耦合作用下,以下描述構造成礦體系的主要變量的時空演化:與成礦流體的形成和性質有關的變量,如地層中礦物(包括成礦物質)的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等;與構造變形和流體運移有關的各變量,如應力與變形速率、巖石孔隙度、構造(斷裂)滲透率等;與沉澱成礦有關的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉澱量等;上述各有關變量間的時空耦合關系,如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment
計算中通量項採用ausm +通量分裂格式,氫反應流場採用氫/空氣的七組元八方程模型和七組元七方程模型,碳氫反應流場採用甲烷的九組元五方程模型、乙烯的十組元十方程模型和煤油的十組元十三方程模型,得出了超燃發動機燃燒室流場的速度、馬赫數、壓力、靜溫、總溫和組元質量分數分佈及燃燒效率等性能參數,其中氫和甲烷的計算壓力分佈與實驗結果進行了比較。The paper depicts the elasticity with euler form and associates the form with depiction of behavior of fluid. the method takes the velocity as basic variables and then derives the left - deformation tensor from the velocity in order to deal with the time - independent motion. at last in this chapter the equations of the finite flow - element are set up from the principle of the virtual work
首先建立流管元的概念,對彈性固體相關的部分採用euler描寫,並融入流體行為的描寫中;以速度為變量,反推左變形張量,用於處理流固物質的定常運動,給出了控制方程和相應的變分式;以此為基礎發展了一套相應的有限流管元演算法。From physical principle, the electric property differences among oil, gas, and water are analyzed, and it is pointed that the electric properties of their mixture in oil wells are not only determined by their electric parameters, but also related to the mixture flow velocity, concentration and distribution state of each phase, and the measured electromagnetic field
其次,從物理機理出發,對油、氣與水的介電特性和導電特性差異進行分析,指出油井內混合流體的電性質不僅與各相流體的電性參數有關,而且與流體的流動速度、各相含量、分佈狀態以及測量電磁場有關。Based on the characteristics of the membrane structures, wind - induced nonlinear coupling dynamic response analysis which can be applied to closed membrane structures is developed and the added air mass the pneumatic stiffness and the acoustical damping of the closed membrane structures are deduced. applying the method to an aeroelastic model of wind tunnel test, the displacement the velocity and the acceleration of corresponding prototype structure in time domain are obtained
本文針對封閉式薄膜結構和敞開式薄膜結構推導了全新的非線性流固耦合風振響應公式,其中耦合因素包括附加空氣質量、氣承剛度和聲致阻尼以及相對運動速度,並將此理論應用於一氣彈模型的計算,獲得了位移、速度、加速度時程以及加速度均方根。Regarding the lcm filling process as the newton fluid through fibrous reinforcements, the permeability of preform determines the saturating of resin in fiber, and has effects on the curing process and the quality of products. based on the darcy ' s law, the theoretical model of permeability measurement was established. and the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details
文中首先根據達西定律建立了滲透率測量的理論模型,深入研究了不同的測試方法及主要工藝參數(纖維織物織構、纖維體積含量、充模壓力、流動速度、樹脂粘度)對滲透特性的影響規律,發現多孔介質增強材料的滲透率主要取決于纖維織物的結構形式,預成型體孔隙分佈及其體積分數、壓實性對滲透率有較大的影響,提高充模壓力和流動速度可以縮短充模時間,在一定程度上可以提高滲透率。分享友人