溫度分佈線 的英文怎麼說
中文拼音 [wēndùfēnbùxiàn]
溫度分佈線
英文
temperature profile- 溫 : Ⅰ形容詞(不冷不熱) warm; lukewarm; hot; gentle; mild Ⅱ名詞1 (溫度) temperature 2 (瘟) acute ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 溫度 : [物理學] temperature
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The research object of this thesis is a chip - array that is fixed on one of printed circuit boards ( pcb ), which are located in a forced air field ( forced convection ) in an electronic case ; and from the essential equations of airflow we can deduce the mathematical model of the turbulent flow ; then we can establish the finite element algorithm and apply the fe software to work out the equations of turbulent flow, finally we can use the software to display and analyse the field of flow and temperature
本文以處于強迫空氣對流流場中的某pcb板及其板上的電子元件陣列作為研究對象,推導了紊流流場的數學模型,並建立了相應的有限元求解格式,應用有限元法分析軟體對該系統的紊流流場和溫度場進行了模擬分析:解算出pcb板上各電子元件的溫度分佈;並提出了用於求解系統風道特性曲線的cfd方法。2. the temperature field got from macroscale theory and microscale theory are similar in the microscale theory, two demension heat transfer model is considered, and the temperature difference of the fluid between central axis and nearby the wall is considerably big. 3
2 、兩種理論模型得到的溫度分佈趨勢基本一致,但微觀尺度理論考慮到流體的二維換熱,通道中心軸線處的流體的溫度與靠近壁面處流體的溫度有較大的溫差。Combined with practical data of shannxi lin hekou hydropower plant, the temperature filed of m and n schemes during construction and operation are simulated and analyzed. the isoline map of stable temperature field of the arch crest girder section and the vertical section in the center of arch dam, the isoline map of unstable temperature field of the arch crest girder section and the vertical section in the center of arch darn during construction and operation and the maximal and minimal temperature value during construction and operation are provided. the distribution law of temperature in the dam and the form reason of high - temperature zone are analyzed and the effect and feasibility of cooling and the zone of cooling are discussed
結合陜西藺河口水電站工程實際資料,對m方案和n方案溫度場進行了施工期和運行期全過程模擬計算分析,給出了拱冠梁剖面和壩體中心縱剖面準穩定溫度場等值線圖以及施工期、運行期拱冠梁剖面和壩體中心縱剖面非穩定溫度場等值線圖,提供了施工期逐月和運行期每年最高、最低溫度等成果,分析了壩體溫度分佈規律以及高溫區形成的原因,並探討了預埋冷卻水管的效果和可行性以及預埋冷卻水管的區域。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上,以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋轉曲線管道內充分發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。Mathematical models of stelmor process have been developed to predict the rod co oling behavior of steel wire under the action of water spray and air flow in the cooling system of stelmor machine
建立了斯太爾摩控製冷卻過程數學模型,目的是研究生產工藝參數對線材冷卻過程中溫度變化及橫斷面上溫度分佈的影響。Abstract : mathematical models of stelmor process have been developed to predict the rod co oling behavior of steel wire under the action of water spray and air flow in the cooling system of stelmor machine
文摘:建立了斯太爾摩控製冷卻過程數學模型,目的是研究生產工藝參數對線材冷卻過程中溫度變化及橫斷面上溫度分佈的影響。A new temperature segmentation linear fitting method sieves the problem caused by the nonlinear mapping between the temperature data and the chroma. that is dividing the temperature into some sections from high to low. different temperature section uses different formula
提出了一種新的溫度分段線性化擬合方法解決溫度數據與色度的非線性映射問題,即將火焰溫度由高向低分成幾個溫度段,不同的溫度段使用不同的運算公式,從而提高了測量的精度,避免了過去方法中試圖用一個標定試驗的公式來求解跨度較大的整個溫度場分佈時所產生的誤差。Moreover, a method for iterating thermal and magnetic analysis is put forward. in chapter 5, the distributed characteristics of eddy and temperature fields in induction heating process are simulation by fem respectively, including the distributions of eddy and temperature fields during the whole induction heating process, the influence of frequency and magnetic disperse, and the prediction of hardened depth
第五章:用ansys軟體對感應加熱過程中工件內渦流場、溫度場的一些基本問題進行模擬及分析,主要包括:加熱過程中工件渦流功率密度及溫度分佈規律;頻率與磁力線逸散對加熱效果的影響;同時對感應淬火淬硬層深度進行了模擬預測。In this paper, a study on two - phase flow and heat exchange inside pipe was made in theory, and the source program used in calculation of temperature distribution of coolant and wall along hollow wire was modified
本文對管內兩相流動及傳熱進行了理論分析,修改和完善了空心導線冷卻介質及壁面溫度分佈的源程序。Based on the wall temperature of hollow wire, the further calculation program has been given. it account for the complexity of the stator ' s structure and can be used in the calculation of the temperature distributions in arbitrary cross section of windings
在空心導線壁溫分佈計算方法確立的基礎上,充分考慮到定子線棒結構的復雜性,採用有限差分的方法編制了通用性較強的線棒截面溫度分佈計算程序。The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the
利用這兩種方法,可以將測得的溫度場分佈中被點擴展函數卷積鈍化掉的部分復原回來,實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值,且分佈曲線變窄,較好地提高了系統的空間分辨能力,最終得到真實溫度分佈的最佳估計。The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下:首先,研究了vcsel的熱場特性,分析了電流擴展,材料參數和工作條件對于溫度分佈的影響;其次,從電極電壓入手,計算出激光器中的等勢線分佈,並對不同深度處的電壓和電流分佈進行比較,研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響;再次,實現了電、光、熱耦合,求出了閾值電壓,計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈,分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響;最後,給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈,分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。In the external region, heat transfer between the u - tube borehole and the ground is considered with a model of a finite line - source in a semi - infinite medium, and it is the first time to achieve an analytical solution of the temperature distribution for a such a transient two - dimensional conduction problem by means of the green - function method
對單個鉆孔的傳熱劃分為兩個區域分別進行研究。在鉆孔周圍區域,將豎直u型管的傳熱簡化為有限長線熱源的傳熱問題,採用格林函數法首次得到了有限長線熱源溫度分佈的解析解。The paper presents a solution method for the transient temperature field, in which the finite element method or the finite difference method is used to get discrete structure, and the finite difference method is used to get discrete time in order to simplify the transient thermal conductive equations as a set of linear equations as a set of linear equations at different moment
本文提出對空間採用有限元法或有限差分法,而對時間採用有限差分法將瞬態熱傳導方程簡化為不同時刻的線性方程組以求解瞬態溫度場,用以求解大體積混凝土在固化過程中不同時刻的溫度分佈。By close study on the average temperature rise, temperature distribution, and tune constant of the class f resin dry type power transformer ' s high voltage and low voltage winding under self - cooling and wind - cooling mode, we find out the connection between the variation of the load and the items, mentioned above. the results of the experiments can be reference to both thermal design optimization of dry type power transformer and the revision of current standards. meanwhile, we develop the software, which can predict the overload ability of the dry type power transformer
本文對f級樹脂澆注式乾式變壓器的高、低線圈的平均溫升,內部溫度分佈和時間常數在自冷和風冷,兩種冷卻方式下隨負載變化的規律進行了研究,得出了平均溫升、熱點溫升和時間常數隨負載變化的相互關系和有關計算用參數和公式,試驗結果可作為改進乾式電力變壓器的熱設計的依據和對現行標準進行修改的參考。Using the result, we can draw nephograms and curves of winding - coil temperature distribution by microcal origin
同時,我們用origin軟體畫出了相應的溫度分佈的計算曲線和雲圖。The results show that the temperature variety in prestress concrete could not been neglected. the main factors that affect the temperature distribution had been analyzed basing on experiment results and much datas of environment variety, and provided a simple curve about periodical variety environment temperature
在現場試驗研究和其它的環境溫度的大量實測資料的基礎上,對影響預應力混凝土構件內部溫度分佈的主要因素進行分析,提出了周期性變化的環境溫度可在數學上簡化為一條簡單的簡諧波曲線。It includes the following aspects : adopting the partial differential equations and neighborhood average smoothing methods to reduce image noises. mapping the rgb three - color and gray scale histogram to study - 3 - the relationship of flame features and temperature field distribution. the methods of calculate important parameters about the average gray value, the flame area and the flame shape center coordinate are given
採用圖象相加、偏微分、鄰域平均等方法來消除圖象噪聲;繪制圖象的r 、 g 、 b三色直方圖來研究火焰幅度特徵分佈與溫度分佈的關系;給出計算平均灰度、火焰面積大小、火焰形心坐標等重要參數的方法;用彩色等溫區或等溫線重構溫度場分佈。With numerical calculations, the influences of device structure, material parameters and operating conditions on the distributions of the equipotential line, current density, carrier concentration, optical field and temperature profiles have been investigated, and the interactions between the correlative characteristics have been studied at the same time
通過對這些相互關聯的特性進行數值計算,分析了器件結構、材料參數和工作條件等對等勢線分佈、注入有源區的電流密度、有源區中的載流子濃度、光場強度以及溫度分佈的影響,並研究了這些特性之間的相互影響。Taking into account thermal and non - newtonian effects of the lubricant, this paper has theoretically investigated elastohydrodynamic lubrication of involute spur gears, and achieved the pressure distribution, film shape, temperature distribution and the values of the friction coefficient and its varying law along the line of action of gear transmission
本文在考慮了潤滑劑的熱效應和非牛頓效應后,對漸開線直齒輪的彈流潤滑問題進行了理論研究,獲得了齒輪傳動的壓力分佈、溫度分佈、油膜形狀和齒面摩擦系數的取值范圍及其沿齒輪傳動嚙合線的分佈規律。分享友人