cooling channel 中文意思是什麼

cooling channel 解釋
冷卻槽
  • cooling : n. ,adj. 冷卻（的）。
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  1. The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing

    對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。
  2. Jet impingement cooling is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure. as regard as the combustor flame tube cooling structure is concerned, the impingement - converse convection - film composite cooling is an effective method, in this composite cooling structure, the impingement cooling problem could be modeled as impingement inside semi - confined channel

    對于沖擊-逆向對流-氣膜復合冷卻的火焰筒結構而言，火焰筒壁面冷氣側的沖擊冷卻實質上是半封閉通道的沖擊冷卻，即沖擊射流從沖擊孔板噴出，沖擊到換熱靶面后形成壁面射流沿通道單方向流出。
  3. 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。
  4. The blade inner channel cooling is very important in the design of turbine blade, with the ever - increasing inlet temperature, the new heat transfer enhancement structures of higher performance are demanded. because of the complexity of the flow and heat transfer of the blade inner channel cooling, the numerical modulation is superior to the experiment. this thesis studied the blade inner channel cooling with the method of numerical modulation

    葉片內部通道冷卻在航空發動機葉片的設計中佔有重要的位置，航空發動機進口溫度的增高對其提出了更高的要求。由於葉片內部通道冷卻的流動與傳熱的復雜性，數值模擬較實驗的研究方法有其優越性，本文利用數值模擬的方法對葉片內部通道冷卻進行了研究。
  5. Then the thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed ribbed channel are measured by using infrared camera and the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : the impingement cooling effectiveness of ribbed surface is affected greatly by the jet - to - surface spacing, and the best effectiveness is achieved under the jet - to - surface spacing equals to 1. the correlation formulas of impingement heat transfer characteristics to the parameters are finally concluded and in good agree with the experiment data

    最後，對單排、雙排沖擊孔試驗板在半封閉通道展開了流量系數的研究，在變化各種幾何因素及流動因素的情況下由實驗得出了沖擊孔流量系數值，討論並分析了各種因素對流量系數的影響程度，建立了沖擊孔流量系數的準則關系式，與實驗結果對比表明:該準則關系式與實驗實測數據吻合較好，精度較高，有較高的工程應用價值。
  6. Unlike inverters for general purpose, auxiliary inverters of subway vehicle have the characters of high power, wide range of high dc input voltage, entirely sealed electronic units and natural cooling. single pulse width modulation ( pwm ) technology is found to be optimal by comparing several different high power inverter technologies and is utilized in the 2 - channel staircase inverter discussed in this thesis

    針對地鐵車輛輔助逆變電源的大功率、直流側輸入電壓高且變化范圍寬、輸出電壓穩定且波形質量高，電子部件全密封且要求自然冷卻的特點，分析比較了幾種大功率逆變器技術方案，選擇單邊脈寬調制階梯波合成逆變器為研究對象。
  7. 4. the paper proved that when the cooling channel belongs to the transitional region from macro - scale to micro - scale, whether the macro - scale theory or the micro - scale theory will be used depends on the accuracy that the researcher reqired, and does not need to depend on the knudsen number

    4 、當冷卻通道屬于宏觀尺度到微觀尺度的過渡區域時，求解計算是採用宏觀理論還是採用微觀尺度的理論，主要是看研究者對求解答案的精度要求，而不必一定按照kn數進行判斷。
  8. The channel scale on transpiration cooling for the platelet thrust chamber of liquid propellant rocket engine is approaching micron dimension. it is very possible that micro - scale effects will occur in the flow and heat transfer of the channel. in the past, researchs on flow and heat transfer in the platelet micro - channel are mostly based on macro - scale theory

    液體火箭發動機推力室壁面發汗冷卻通道的尺度已達微米量級，通道內的流動與換熱很可能存在微尺度效應，以前的相關研究都以宏觀尺度的理論為依據，其研究結果的合理性需要進行微尺度效應的分析。
  9. A new design of fractal branching channel net for cooling of electronic chips is studied. based on the generation of a fractal branching net, heat transfer and the required pumping power for fluid flow in fractal microchannels and the parallel channels are compared

    論文最後介紹了一種分形微管道網路，在給出其構造過程的基礎上，利用有限元法將其傳熱能力、所需泵送功率與平行微管道網路進行了比較。
  10. Experimental study of flow characteristics in two - pass channel with ribs and cell film cooling

    帶直肋及氣膜出流的回轉通道內冷氣流動特性
  11. Check or improve cooling channel

    檢查或改善冷卻水道
  12. The newly designed lubrication and cooling channel make the engine more reliable and lengthen the life

    全新設計的潤滑、冷卻油路，發動機運行更可靠、使用壽命更長。
  13. To satisfy the practical need of film cooling in turbine blades of aeroengine, some detailed experimental measurements on the flow field in the channel with the holes on the wall and in the holes had been completed within a wide range of aerodynamic parameters. and the interrelated numerical simulated compute had also been implemented

    本文根據航空發動機中渦輪導向葉片氣膜冷卻的實際需要，在寬廣的氣流流動參數范圍內，對葉片內冷通道的流場進行了詳細的實驗測試，同時還進行了相應的數值模擬計算。
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