模擬熱平衡 的英文怎麼說
中文拼音 [mónǐrèpínghéng]
模擬熱平衡
英文
simulate thermal equilibrium- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 衡 : Ⅰ名詞1 (秤桿) the graduated arm of a steelyard2 (稱重量的器具) weighing apparatus3 (姓氏) a...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
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Numerical simulation of 3d hypersonic thermochemical nonequilibrium flow
高超聲速三維熱化學非平衡流場的數值模擬The temperature distribution on the high temperature side of an electric tunnel furnace is analysed and simulated on the basis of the principle of thermal radiation by the way of thb ( thermal heat balance ). the heated silicon carbon sticks are decomposed into innumerable tiny heating faces, which exchange the heat with the heated materials. a numerical model based on the radiation intensity law is constructed to calculate the energy absorbed by the heated materials and simulated by a computer. the results showed that the even distribution of temperature can be obtained by optimizing the arrangement of the silicon carbon sticks according to the calculation results to make the structure design more reasonable. these calculation results have been used in the practical designs and the expected objectives achieved
利用熱輻射原理,採用熱平衡法對電熱隧道窯的高溫恆溫區溫場進行了分析和模擬.計算中將發熱棒分解為無數微元發熱面與燒結體進行熱交換,依據輻射強度定律,建立了燒結體接收能量的數學模型,並用計算機進行了模擬計算.結果表明,依據模擬結果來優化硅碳棒的排布,可使結構設計更加合理,進而可以獲得分佈均勻的恆溫區溫場.計算結果已在窯爐設計中應用,實踐效果良好An one - dimensional non - equilibrium mathematical model was established to describe the performances of unit adsorbent bed. finite difference forms of the equations were written in matlab. a conventional test bed for investigating the inner properties of cacl2 - nh3 unit tube was developed and the real data were used to test the model
在前人研究經驗的基礎上,建立了單元管吸附床內一維非平衡吸附條件下的傳熱傳質數學模型,提出了該模型的數值求解方法,並給出了數值模擬算例。A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains
模式主要依賴于以下參數和物理量:地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明,本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等,以及它們的日變化。該模式所取參數主要針對北京市,時間為九月初,對于其他城市,參數應作相應的調整。In the paper, with system energy balance method and heat conductive equations , on tne basis of short time heat transfer modeling established the long time modeling, considering heat interference in thermal well group. this paper used the finit element method for element division and computer analysis, and provided the operation temperature figure. acquired computation values agreed well with experimental results, the most difference between them was 5. 13 %
本文採用系統能量平衡結合熱傳導方程,在淺埋套管式換熱器短期傳熱模型基礎上建立了長期傳熱模型,並考慮了管群熱干擾對模型的影響。並運用有限單元法軟體編程進行離散和計算機分析,得出模擬溫度場,其模擬值與實測的均值基本相符,兩者最大誤差小於5 . 13 % ,表明該模型具有一定的合理性和實用意義。Based on the observation data such as coads and soda, the main climatological features of the tropical indian ocean and relationships of sea surface temperature ( sst ), heat budget with ocean dynamics and thermodynamics processes are analyzed ; the seasonal and interannual variability of the tropical indian ocean are well simulated using a ocean general circulation model ; based on the thermal equation and model output data, the variation mechanism of sst and heat budget are investigated in the tropical indian ocean ; besides, the effect of seasonal variation of wind stress, ekman pumping and horizontal diffusivity on the ocean current and heat budget are studied, using both ideal model and complex model
本文根據coads 、 soda等實際觀測資料,較全面的分析了熱帶印度洋主要的氣候特點,並研究了海表面溫度( sst ) 、熱收支與海洋動力、熱力過程的聯系;利用全球海洋環流模式較好地模擬出熱帶印度洋的季節和年際變化;基於熱力學方程和海洋環流模式輸出結果,探討了熱帶印度洋sst和北印度洋熱量收支的季節和年際變化機制,進一步揭示了海洋動力過程在北印度洋熱平衡中的重要作用;在此基礎上,利用理想化的數值試驗與數值模擬結果相結合的方式,證實了風應力的季節變化和ekman抽吸,以及水平熱量擴散系數對北印度洋海洋環流和熱收支的影響。Abstract : the paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
文摘:首先介紹了三種動力學模擬超臨界流體萃取的模型(經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型) ,然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程,最後通過該例子展示了現有大多數動力學模型的缺點The paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
摘要首先介紹了三種動力學模擬超臨界流體萃取的模型(經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型) ,然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程,最後通過該例子展示了現有大多數動力學模型的缺點。Abstract : the method of generating infrared image of target in the sky was proposed. at first, the geometric model of the target in the sky was built with grid ; secondly, using the theory of aerodynamic and heat transmission, the thermal equation of the different skin of target ( the skin with and without heat source, the skin with heat source and the skin of gasoline tank ) were established ; thirdly, as an example, the solution of the thermal equation of ultrasonic plane was obtained ; finally, the result of the computer simulation were proposed
文摘:提出了空中目標的紅外圖像生成方法,首先是空中目標的幾何建模及其網格化,然後據飛機空氣動力學和傳熱學原理提出了空中目標幾種蒙皮(單層蒙皮、內有燃油蒙皮、發動機影響區蒙皮)的熱平衡方程,然後以超音速飛機為例,介紹了方程的求解過程,最後給出了計算機的模擬結果及分析。The mathematical and physical dynamic models are given based on the adsorbent theory of porous medium. its running and parameters affecting its performance are numerically studied and the method that control the water content in the absorbent bed is recommended. the improvement on system configuration to recover heat is discussed and the operation scheme is given
利用多孔介質吸附模型和平衡吸附壓力的概念建立了該系統工作過程的物理數學模型,數值模擬的方法模擬了其工作過程和影響因素,提出了控制吸附床含濕量的方案,驗證了改進流程回收能量的可行性並給出了操作方案,提出並分析了用熱電製冷器回收水蒸氣潛熱節約電能的方法。Theoretical analysis and simulation results demonstrate that asymmetries in lower and upper sidebands and imd magnitude variation depending on envelope frequency and junction temperature can appear, these results are in accordance with measurement results, and show that electrical and thermal memory effects exist
理論分析和模擬結果表明功率放大器上下邊帶不平衡和互調失真幅度依賴于包絡頻率和結溫,結果和測量的結果是一致的,說明存在電和熱記憶效應。The system is described mathematically on the basis of mass balance, energy balance, and phase equilibrium. the model of process simulation of the aht system is set up. the solution system of mathematical model of absorption cycles was put forward
對吸收式熱變換器( aht )的基本原理和行為特徵在系統層次上進行了分析,進而根據質量平衡、能量平衡和相平衡方程對系統進行數學表述,建立了系統的過程模擬模型,並提出了aht吸收循環數學模型的求解機制。Standard practice for solar simulation for thermal balance testing of spacecraft
航天飛機熱平衡試驗用太陽模擬規程With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization
採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數,首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬,分別分析了tm _ ( 011 )和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響;應用於小型化mpt時,指出了小型化設計參數的合理選取,即:小型化后的mpt ,喉徑小、工質流量小,消耗的微波功率也小。Ansys finite element analysis software is applied for simulating the temperature field of the paraffin and the copper. the time needed of the cylindrical paraffin and the cylindrical copper reaching the thermal equilibrium is calculated respectively, and compared with the experimental data
使用ansys有限元分析軟體,分別對石蠟和銅受熱時內部溫度場分佈進行了模擬,理論計算出圓柱狀石蠟和圓柱狀銅整體達到熱平衡狀態所需的時間,並且和實驗中所測納米銅粒石蠟溫敏復合材料達到熱平衡狀態所需的加熱時間進行了對比分析。Based on the experiments, the simulation of the heat exchanger and scroll compressor was accomplished which also offered a favorable condition to the establishment of the whole gwshp methods were used to improve the veracity and astringency of the model, such as : dividing the condenser into several tiny segment with equal area ; separating the condensing process into single - phase region and double - phase region ; the comparing result showed that most of the error between the data of simulation and experiment was within 5 % while the maximal error was 8. 35 %
在建模過程中,從大量蒸發和冷凝的換熱關聯式中,通過與實驗數據的比較找出了與實驗結果最為接近的換熱關聯式在建模過程中,針對冷凝器及板式換熱器的特點,採取將冷凝器按面積分成若干個微元段,並將冷凝過程分成單相區和兩相區的方法。同時對渦旋壓縮機進行建模和分析同時在熱力學平衡基礎上與實驗數據比較,經過驗證,對于換熱器模型,模擬計算與實驗結果的誤差一般都在5以內,最大為12 。The dependence of superlattice thermal conductivity on period length is investigated by nonequilibrium molecular dynamics simulation
摘要採用非平衡態分子動力學方法模擬了超晶格的法向導熱系數隨周期長度的變化關系。With the operation conditions, the adsorber, the evaporator, the condenser, the receiver and the throttle are disigned. the adsorber is of the most importance in the adsorption system, so we provide the non - dynamic equilibrium model of active carbon fibre ( acf ) - methanol adsorption refrigeration pair. the numerical simulation is carried out based on the recorded solar radiation data measured in nanjing and daily ambient temperature for the typical clear days. the temperature field, the pressure field, the methanol concentration and the temperature of evacuted tube, and water tube are caculated
吸附床是吸附製冷系統的核心,本文以活性炭纖維?甲醇為工質對,建立了吸附床非動態平衡吸附傳熱傳質數學模型,以南京夏季典型一天中的輻射強度和環境溫度為條件,模擬計算了吸附床在通水冷卻和自然冷卻兩種狀態下,吸附床內各點壓力、溫度、吸附率、吸附總量及真空管和冷卻水管壁溫隨時間變化關系。Abstract : a numerical model and experiments over pmma are used to evaluate the main assumptions used in the theoretical description of a diffusion flame established in a natural boundary layer. flow characteristics ( 2 - d boundary layer ) and surface thermal balance are identified as the critical assumptions to be evaluated. comparison of experiments, numerical results, and theoretical model serve to validate the assumptions leading to the definition of a mass transfer number but establish the need to model all three - dimensional features of the flow
文摘:對pmma進行數字模擬和試驗,對描述自然邊界層擴散火焰理論的假設進行評價.我們把流動特性(二維邊界層)和表面熱平衡作為評價的關鍵假設.試驗、數字模擬和理論模型證實了對質量傳遞數值定義的假設是正確的,但研究也表明,有必要對流動特性進行三維模擬The relationship between thermal contact resistance and surface roughness is discussed. the influence of outer space heat flow on spacecraft on the orbit is analyzed, and a balance temperature of spacecraft on the orbit is calculated
通過計算空間外熱流對航天器在軌溫度的影響,得到航天器在軌平衡溫度。最後完成瞬態溫度場的模擬計算,對推力室在軌溫度進行數值模擬。分享友人