base heat transfer 中文意思是什麼
base heat transfer
解釋
底區傳熱-
The base of ehtv calculation is analyzing the dynamic heat transfer to equivalent temperature difference solar factor of windows, for the shading of windows it used external shading multiplier
Ehtv簡化計算的基礎是將這些動態熱作用分解為等效溫差、標準窗太陽輻射得熱等參數，而且系統地提出外遮陽系數，簡化了建築遮陽對外窗太陽輻射得熱的計算方法。 -
In this paper the flow field of falling film along the inner of vertical tube is simulated and it ' s the necessary base of the further research that includes characteristics of heat and mass transfer in the absorber under the fluctuant state. in this paper the ocean fisher ' s movement in the ocean is studied and the physical and the mathematical models of fisher are founded, then the expressions of the force caused by the movement are obtained. the expressions are combined with partial different equations of falling film under the static state, thus the mathematical model of the falling film under fluctuant state can be gained
本文首先研究了船舶在海洋中的運動，建立了船舶搖擺運動的簡化物理模型和數學模型，得到了運動附加力的表達式；並在此基礎上將吸收管的運動附加力表達式代入靜止狀態下液膜流動的數學模型中，即得到了搖擺狀態下液膜流動的數學模型；然後對液膜流動的數學模型進行了簡化，在假定了速度分佈的條件下，得出了液膜流動的積分方程，經過以上簡化就將求解三維問題轉化成為求解二維問題；將積分方程離散化後用數值計算的方法模擬了整個流場。 -
In this paper the flow field of falling film along the inner of vertical tube is simulated and it ' s the necessary base of the further research that includes characteristics of heat and mass transfer in the absorber under the fluctuant state. in this paper the ocean fisher ' s movement in the ocean is studied and the physical and the mathematical models of fisher are founded, then the expressions of the force by the movement are obtained. the expressions are combined with partial different equations of falling film under the static state, thus the mathematical model of the falling film under fluctuant state can be gained
本文首先研究了船舶在海洋中的運動，建立了船舶搖擺運動的簡化物理模型和數學模型，得到了運動附加力的表達式；並在此基礎上將吸收管的運動附加力表達式代入靜止狀態下液膜流動的數學模型中，即得到了搖擺狀態下液膜流動的數學模型；然後對液膜流動的數學模型進行了簡化，在假定了速度分佈的條件下，得出了液膜流動的積分方程，經過以上簡化就將求解三維問題轉化成為求解二維問題；將積分方程離散後用數值計算的方法模擬了整個流場。 -
Analyzing of the heat transfer in microchannel heat sinks, finite element method is used to calculate the surface temperature, fluid temperature and the total thermal resistance of microchannel heat sinks with arbitrary base heat flux distribution
在對微管道散熱器進行傳熱分析時，本文利用有限元法在微管道底壁熱量任意分佈的情況下，計算了微管道的壁面溫度和流體溫度分佈，最終得到了總熱阻值。 -
Secondly, the temperature distribution in rib - tube heat exchanger in the course of heat transfer is programed and simulated using apdl language of fem software ansys, and the average convection coefficient of both sides is obtained. the rib - tubes with different structure are also simulated and optimized on the base of the calculated results, the relationship between structure and the average convection coefficient of both sides is summrized. the rib - tube structure is optimized using apdl. finally, combines numerical simulation with experimental research, and results of numerical simulation are found to be close to the experimental data
利用ansys有限元程序對翅片管換熱器的換熱過程進行數值模擬，確定了換熱過程中翅片管的溫度場和熱流量梯度分佈狀況，對翅片管換熱器的多組分流場進行計算，給出了逆流和順流兩種情形下翅片管結構參數對換熱效果的影響規律，並利用ansys提供的優化技術編寫程序對翅片管進行結構優化設計，為其今後在工業中的設計及使用提供了重要依據。 -
Traditionally, solid particles of micrometer or millimeter magnitudes were mixed in the base liquid. although such solid additives may improve heat transfer coefficient, practical application are limited because of the fact that the micrometer and / or millimeter - sized particles settle rapidly, clog flow channels, erode pipelines and cause severe pressure drops
迄今為止，在液體中添加的粒子都局限於毫米或微米級，由於這些毫米或微米級粒子在實際應用中容易引起磨損、堵塞等不良結果，而大大限制了其在工業實際中的應用。 -
A new class of heat transfer fluids called " nanofiuids " has been proposed. nanofluids refer to a new kind of heat transport fluids by suspending nanoscaled metallic or nonmetallic particles in base fluids. nanofluids are expected to exhibit heat transfer properties superior to those of conventional heat transfer fluids
納米材料科學的迅速發展給強化傳熱領域帶來了新的機遇，有學者提出了一個嶄新的概念?納米流體：即以一定的方式和比例在液體中添迦納米級金屬或非金屬氧化物粒子，形成一類新的傳熱冷卻工質。
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