complex heat transfer 中文意思是什麼
complex heat transfer
解釋
復雜傳熱-
Results show that the influence of mainstream reynolds numbers on heat transfer coefficience is little and the heat transfer coefficience raise with the increase of reynolds numbers. the influence of the position of holes on heat transfer coefficience is complex and correlate with the mainstream speed and the balde surface curvature. and the influence of blowing ratio on heat transfer coefficience is more great ( especially to stator ), and show a complex relation to mainstream reynolds number and the position of holes
實驗結果表明，不同孔位出流的換熱由於孔排下游表面來流速度及葉片表面曲率的不同而有不同的規律，而主流雷諾數對葉片表面特別是壓力面和前緣區域的換熱系數比的影響較小，吹風比對換熱系數影響較大（特別是導葉） ，並且隨氣膜孔位置和來流雷諾數的變化而情況復雜。 -
The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。 -
Rotary jet impingement heat transfer is a complex enhanced heat transfer technique which uses two kinds of ways to improve heat transfer coefficients greatly. quantitative temperature measurement using thermochromatic liquid crystals ( tlcs } is a " field " temperature measurement technique
旋轉射流沖擊冷卻換熱是一種復合強化傳熱技術，它是將射流沖擊與管內插入扭轉帶這兩種強化措施同時應用，以期獲得更大傳熱效果的技術。 -
Complex convective heat transfer in an air - conditioning room with protruded heat source
具有凸出熱源的空調室內的復雜對流換熱研究 -
Research work of hyperbolic equation of heat conduction not only posses theoretical meaning, but can be used to engineering practices for solving the complex heat transfer at extreme condition
研究雙曲型熱傳導方程對于求解極端條件下的復雜傳熱問題不僅具有理論意義而且具有工程實際背景。 -
The effective heat - transfer temperature difference ( t _ i ) of every effect of multi - effect evaporation subsystem and the preheat temperature rise ( t _ ( p, j ) ) of every level of multi - level preheat subsystem of the design model were distributed by equal heating area, equal heat - transfer temperature difference, and free proration methods. the simulation of design has been conducted by matrix method combined with iterative method. the free proration method transformed the decision variables from t _ i and t _ ( p, j ) with complex restriction into _ i 、 _ p, jwith the value range of 0 1, and provided a simple and convenient method for optimum design
操作型模型分別以t _ 0 、 t _ k 、處理量f _ 0 、出料濃度x _ （ az ）等不同控制變量為未知變量並採用矩陣法結合迭代法進行操作模擬計算;在操作模擬計算的基礎上，建立了復雜多效蒸發系統操作優化模型，該模型以濃縮成本最小為優化目標，以t _ k和f _ 0為決策變量，採用遺傳演算法結合矩陣法求解。 -
The influences of thermal effect of an axis on its design precision were discussed and the temperature distribution of a rotating axis was obtained by the conventional heat transfer equations that needed a complex solving procedure and gave a blurry distribution rule
摘要考慮了熱對提高軸類件設計精度的影響，並通過傳統導熱微分方程法和一般傳熱學理論對主軸在運動時熱分佈進行了分析，指出了傳統熱微分方程解法復雜，從解析式中難以看出溫度分佈規律，運用傳熱學理論解法簡單明? ，結果易於反映各參數關系，精確度較高，實用性強。 -
Heat and mass transfer with spraying in venturi tube is very complex in converter coal gas recovery system
摘要在轉爐煤氣回收系統中，文氏管內部有噴射行為的傳熱傳質非常復雜。 -
Then, a twisted tape is inserted the tube to produce rotary jetting, and rotary jet complex enhanced heat transfer for carbon dioxide jetting in air is studied by the thermochromatic liquid crystals temperature measurement system
在此基礎上，在管內插入扭轉帶產生旋轉射流，採用熱色液晶測溫系統對二氧化碳為工質的旋轉射流復合強化傳熱進行了研究。 -
Adopting complex wind channel technic for improving the heat transfer
採用復合風道技術，增強散熱效果。 -
The mass flow rate coefficients increase and achieve a constant at last with increasing blowing ratio. the influence of blowing ratio on the heat transfer coefficients and film effectiveness is complex
流量系數隨吹風比的增大而增大並最終趨于某個定值，但吹風比對氣膜孔下游換熱系數和冷卻效率則較為復雜。 -
In chapter 2, a new ir imaging model for city buildings has been established based on meteorology, heat transfer and infrared physics. we first analysis all kinds of main factors affecting the ir characteristic of city buildings, then by using the methods such as multi - layer finite difference the surface temperatures of building and other surrounding objects are acquired. combining the methods of classified modeling and special modeling we constitute the large - scale complex urban ir scene and render the ir images of urban scene at various time
本文第二章從氣象學、傳熱學和紅外物理學原理出發，分析了影響城市建築物紅外特性的各種主要因素，採用多層有限差分等方法求解建築物及周圍物體的表面溫度，建立了城市建築物紅外成像模型；採用分類建模和特殊建模相結合的方法構建了大規模復雜城市場景的紅外模型，繪制出了不同時刻城市復雜場景紅外成像圖。 -
In the laminar flow regime, a analytical mathematical model is obtained by analyzing the film flowing in the wavy wall tube. in the turbulent flow regime, mathematical model almost ca n ' t be obtained directly because the turbulent flow in wavy wall tube is very complex, the model is obtained by quoting some results which are theorized by other studiers. in the part of experimental study, the flow form in the wavy wall tube is observed by transparent quartz glass wavy wall tube apparatus, the evaporation experiments are carried out in a 3 meters steel wavy wall tube, using glucose as the medium, heat transfer is invested, the heat transfer correlations of wavy wall tube evaporator are obtained
數學模型的建立過程中，對于液膜層流流動，直接對波形管內的降落液膜進行理論分析，得出液膜層流流動下數學模型的解析式；對于液膜湍流流動，由於湍流流動的復雜性，再加上所採用的波形管對湍流流動的影響，直接對降落液膜進行理論分析建立數學模型是極其復雜的，通過採用以前一些研究者得到的理論分析與實驗結果，並引入與波形管的形狀特徵參數有關的修正系數k ，建立液膜在湍流流動下的數學模型。
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