簡化熱流 的英文怎麼說
中文拼音 [jiǎnhuàrèliú]
簡化熱流
英文
reduced heat flow- 簡 : Ⅰ形容詞(簡單) simple; simplified; brief Ⅱ動詞1 (使簡單; 簡化) simplify 2 [書面語] (選擇人才...
- 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...
- 簡化 : simplify; facilitate; idealization; dilution; simplification; reducing; simplifying; [自動化] red...
- 熱流 : 1 (激動振奮的感受) warm current 2 [氣象學] thermal current; [熱學] heat transmission; thermal f...
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This paper researches diathermancy and fluidity of condenser, evaporator, compressor, and capillary in detail. maths models of condenser, evaporator, compressor, and capillary are established and model predigesting and modifying methods are done methods are given in this paper, which can transfer the practical system into the simulating system. in the basis of refrigerating system character, components models are modified in the system administrative levels
本文詳細研究了蒸發器、冷凝器、壓縮機和毛細管的傳熱特性和流動特性,建立和發展了蒸發器、冷凝器、壓縮機和毛細管數學模型,並進行了相應的模型簡化和修正方法研究,建立了從實際系統到模擬系統的轉換方法;本文針對各製冷系統的特點,在系統層次上進行了部件模型的修正研究,建立了相應的修正模型和演算法。Under the assumption that the inner surface of stator sleeve and outer surface of rotor are smooth, taking the fact into account that the temperature of stator sleeve of evaporation cooling motor keeps almost the same, horizontal evaporation cooling motor is simplified as a physical model of two coaxial sleeves, with outer sleeve ( the stator ) holds still and keep at constant temperature and inner sleeve ( the rotor ) is rotating and heated
本文通過數值和實驗手段研究了臥式蒸發冷卻電機楔形氣隙中的流體流動、傳熱現象。本文在定子套筒和轉子表面光滑的假設下,針對蒸發冷卻電機定子套筒壁面基本恆溫的特點,將實際蒸發冷卻電機簡化為同軸套筒內筒加熱旋轉、外簡靜止定溫的物理模型。Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式,數值模擬了成型中的熱殘余應力及其翹曲變形,並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響,發現溫度變化不均勻是注塑件翹曲變形的最主要原因,其影響遠大於壓力的作用,與工程實驗的結論一致This paper described a cross - flow type of indirect evaporative cooler with condensation in primary airflow. according to the heat and mass transfer performance of indirect evaporative cooler, three - dimensional mathematical model had been established. with the preprocessor gambit, the geometry and mesh generation was completed
論文根據間接蒸發冷卻過程傳熱傳質的特點,對間接蒸發冷卻器進行了合理必要的簡化假設,應用計算流體力學( cfd )方法,建立了板式間接蒸發冷卻器的三維數學物理模型。The seasonal variation of the mean meridional circulation and the double - level structure of the hadley circulation are analyzed by the two methods. the paper also studies the zonal difference of the anomalous meridional circulation and the impacts of el nino / la nina events on the local meridional circulation anomaly. conclusions are drawn as follows : 1, the hadley circulations in both hemisphere and the position of their joint uprising branch move wholly with the heat equation, with most north in july and most south in january
然後用簡化方法分析了氣候平均經圈環流的季節變化,論文還對hadley環流的雙層結構和異常經圈環流的緯向差異以及elnino 、 lanina事件對局地經圈環流異常的影響作了研究,結果表明: 1 ,北、南半球hadley環流圈及其共同上升支的位置隨熱赤道作整體性移動, 7月最北, 1月最南。The approaches establish a relationship between monthly precipitation abnormality and monthly circulation, soil moisture and temperature on the shallow and deep layers. the relationship is the precipitation diagnostic equation and its coefficients and dimensions are determined by using the observed data of huai river basin. then we select the main soil moisture and temperature attributing factors by the dimensional analysis to establish a forecasting equation of summer precipitation over huai river basin with the statistic approach
通過將大氣中的熱量、水汽收支方程與一個簡化的兩層土壤溫度、濕度方程相結合,並依據月尺度大氣環流的演變特徵,推導出月降水距平與500hp月平均高度距平場、土壤深淺兩層溫、濕度的關系;利用臺站觀測資料,使用統計反演方法確定方程中各項的系數和量級,從而找出影響降水的主要土壤溫、濕因子;利用統計方法建立這些因子與淮河流域夏季降水異常之間的簡單線性預報方程,並對1992 - 2000年淮河流域夏季降水趨勢進行回報。A simple and easy operating criterion is put forward in accordance with the relation between positive - sequence component and negative - sequence component of stator current when the motor is in unbalance and single phase broken. based on analyzing the traditional inverse time - lag overloading protection of motors, an inverse time - lag operating equation with accumulating stator current is achieved, according to the differential equation of the heating and cooling while the current flows into the conductor
在分析電動機傳統的反時限過負荷保護的基礎上,根據導體中流過電流時的發熱、散熱微分方程得到了累加定子電流的反時限過負荷保護動作方程,經簡化后得到累加定子電流的實用的反時限特性遞推公式。These methods are following : ( 1 ) in order to build fem model conveniently and enhance calculating speed, interceped a finite length and built a 2d - symmetry model. ( 2 ) in order to apply loads conveniently, kept the entrance of cold fluid. ( 3 ) in order to obtain numerical results in steady situation, lengthened export and import ends
這些方法主要有: ( 1 )為了便於建立模型並提高計算速度,對于實際工程中採用的長徑比特別大的換熱管採取截取有限長度的方法並建立二維對稱簡化模型; ( 2 )提出採取保留冷流體入口端,截取有限長度的方法施加載荷; ( 3 )適當延長翅片管的出口端和入口端,以便獲得穩定工況的數值解。In this article, constituting some the equations which reflect the flow law and building and applying many mathematical models of physical and chemical reactions in the the plasma ignition : applying k - two equations turbulence model to calculate the turbulence parameter supplying simplied reaction systerm model and applying eddy break - up model and p - i thermal radiation model. with these reasonable simplied modles, numerically simulating the flow field in the plasma ignition. during the numerical simulation, applying the body - fitted coordinates for the complex geometry of the computional field ; using the mixing format to disperse the equations ; applying simplec algorithm method to solve the equations ; using above models and methods, it can get flow field distribution ; including temperature, pressure, turbulent kinetic energy and its dissipation rate, turbulent viscosity, velocity, density. these results are significant to design and improve the plasma ignition
本文旨在通過構造反映等離子點火器內部流動規律的基本方程組,建立描述等離子點火器內部的復雜物理化學過程機制數學模型:模擬等離子發生器內部燃燒的-雙方程湍流流動模型;模擬氣體燃料在燃燒時中化學反應的簡單化學反應系統模型;模擬等離子點火器內部湍流預混燃燒的漩渦破碎模型;模擬等離子點火器高溫燃氣及其壁面的p - i輻射換熱的模型等等,對模型進行一定的合理的簡化,然後數值模擬等離子點火器內部流場的流動。Electric cables - calculation of the current rating - part 2 : thermal resistance - section 2 : a method for calculating reduction factors for groups of cables in free air, protected from solar radiation
電纜.額定電流的計算.第2部分:熱絕緣電阻.第2節:室外避免陽光照射的電纜組用計算簡化系數的方法A new method is developed to predict the temperature distribution of cooling - plate with non - uniform heat load on the surfaces, meanwhile, two types of cooling - plate used in the environment control system of airplane are studied experimentally under conditions of different reynolds number of air and surface heat loads
摘要提出了一種新的冷板簡化數學模型,把翅片摺合成導熱系數?各向異性的等效厚度層實芯板,將冷板與空氣的對流換熱作?等效層的穩態導熱問題,計算了表面熱源非均勻條件下冷板的溫度分佈。Additional, the operation simplifies, shorten shape a cycle also is mould of hot flow path important characteristic
另外,操作簡化、縮短成型周期也是熱流道模具的一個重要特點。An analytical and experimental study has been made of the critical heat flux ( chf ) of natural convective boiling on uniformly heated inner tubes in vertical annular tubes submerged in staurated liquids
摘要採用管內汽液均相流模型,對豎直套管內的自然對流沸騰最大熱通量( chf )進行理論解析並提出了簡化的理論計算公式。When e - business has simplified the interchange of information, fund and property, logistics becomes the hot issue
當電子商務簡化了信息流、資金流、商流后,物流的問題成了這個領域討論的熱點。Combining the simplified momentum equation, energy equation and state equation of compressible sticky fluid, this paper establishes the numerical model to study the heat - transfer property of the substances in super - critical waterwall tubes with the newest international water and steam standard - iapws - 97
本文採用最新的國際水與水蒸汽標準iapws - 97 ,通過聯立求解簡化的可壓縮黏性流體的動量方程、能量方程和水與水蒸汽的狀態方程,建立數值模型研究超臨界水冷壁管內工質的傳熱特性。Abstract : the concept of equivalent heat channel is adopted to simplify the prdiction of thermal contact resistance. after establishing the model of contact surface, the definitive parameters in equivalent heat channel of the thermal contact resistance are gained. and the whole thermal contact resistance is composed of the parallel connected equivalent heat channels
文摘:採用當量熱流通道的概念對接觸熱阻的預測進行簡化分析,即對表面情況建立相應的表面模型后,確定出當量熱流通道上的各個參數,整個接觸面上的接觸熱阻即可視為有多個當量熱流通道形成的接觸熱阻並聯而成,從而可以預測出兩個物體間的接觸熱阻。The dynamic numerical models of thermal components in the thermal management system are established based on the principles of abstraction, simplification and equivalence, and the general solution method, including the discretization of one - dimensional convection, is given. thermal management simulation platform is constructed using object - oriented method
論文根據抽象、簡化和等效的原則建立了空間站熱管理系統中各熱組件的動態數學模型,給出了統一的求解方法和一維對流換熱的離散求解方法;用面向對象的方法建立了熱管理系統模擬平臺。Thirdly, this dissertation briefly introduces the engineering estimation method of the aerodynamic heat and supplies the simplified formulas. not considering the rejection, the ablation and some other factors, the author calculates the stagnation heat flux and the non - stagnation field heat flux distribution of some fly situation as the example aerodynamic heat environment. finally, by using the ansys program, the thermal vibration characters of the plate and missile body structures with different materials is analyzed
這一方法提高了熱振動的分析效率;第三,簡要的介紹了工程上計算氣動熟的估算方法及熱流密度計算的簡化公式,在不考慮燒蝕以及質量引射等影響下,本文計算了幾種飛行條件下駐點和非駐點區的熱流密度分佈,作為本論文算例的氣動加熱環境。Second, " step by step method ' : first solve part of the case, the results of the first part is been written as user difined founctions, then read these fouctions into the remain part of the case, solve the case. the last way is " porous media method " : treat highly complex region with porous media, mesh the whole space enclosure and solve the case using fluent
本文中採取了三種不同的方法對西安四聯智能股份有限公司的會議室模型進行數值計算預測流場:一是直接劃分網格進行計算;二、抽取局部進行計算,這是面對復雜問題比較常用的一種方法;三、採用類似換熱器模型的思路,利用多孔介質模型簡化復雜流場,再劃分網格進行計算。First, the dynamics characteristics of the heat - exchanger unit is analyzed carefully by using the knowledge of the fluid dynamics and heat transfer etc., and makes some reasonable simplicities and assumptions. so it establishes the mathematical model of the working process of the heat - exchange unit, and applies the recurrence parameter estimator to identifying and proving
本文首先綜合應用流體力學、傳熱學等方面的知識,分析了換熱機組的動力學特性,通過合理的簡化和假設,建立了換熱機組工作過程的數學模型,並使用遞推參數辨識器對其主要參數加以估計和驗證,從而得到換熱機組的carma (受控的自回歸滑動平均)或carima (受控的自回歸積分滑動平均)模型。分享友人