air convection 中文意思是什麼

air convection 解釋
空氣對流
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • convection : n. 1. 傳送。2. 【物理學】運流，環流；【氣象學】對流，上升氣流。
  1. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises ( see ideal gas law )

    對流段的一個熱門表面出現的，因為熱空氣的擴大，成為密度較低，而上升（見理想氣體定律） 。
  2. Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it

    對流是傳熱集體議案的流體，如空氣或水，當加熱流體是造成搬離努力從源頭上的熱量，進行能量與它。
  3. 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。
  4. Second, on the basis of the above study, the coupled relationship among parameters of every part of refrigeration system and air convection cool system of small - scale cold storage is deeply analyzed and some appropriate numerical techniques are put forward for dynamic simulation. a dynamic simulation model of the small - scale cold storage refrigeration installation is established and calculated

    其次，在上述研究的基礎上，分析小型冷庫製冷系統和強迫對流空氣冷卻系統各部件參數的耦合關系，並採用適合動態模擬的計算方法，對小型冷庫模擬模型進行計算，計算結果和實驗結果吻合較好。
  5. Due to the sun radiation, the heated and expanded surface air ascends and meets the cold descending air, this air convection causes the turbulence which is obvious at noon

    這是因為太陽光的照射，使地面的空氣受膨脹上升，冷空氣下降補充，形成空氣對流而引起的顛簸，中午飛行尤為明顯。
  6. Forced convection air cooler

    強制對琳氣冷卻器
  7. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。
  8. 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。
  9. Independent gas - fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases ; german version en 1266 : 2002

    鼓風機送入助燃空氣和排出廢氣的對流式室內燃氣加熱
  10. The complicated behavior and multiple states of indoor air convection are mainly related to the multiple physical processes, such as the thermal buoyancy, the solutal buoyancy and the mechanical ventilation

    室內空氣對流行為的復雜性與狀態的多樣性通常是多種物理過程相互作用的結果，如離散熱源的熱浮升力、離散污染源的濃度浮升力及機械通風等。
  11. The new device consists of paint - drying box, heat carrier boiler, heating pipe, expansion tank, gas separator and oil tank, etc. the data of two applied examples shows that heat carrier paint drying method is able to make painting - drying cost drop by 88 %, compared with the conventional one, that it has some advantages such as uniform temperature field, good appearance and lower costs, compared with conventional hot air convection mode

    該裝置主要由熱載體烤漆爐、輻射加熱管，熱載體爐、膨脹器、油氣分離器和儲油槽等組成。應用實例的測試數據表明，與傳統的遠紅外電加熱鋼瓶烤漆方式相比較，鋼瓶熱載體烤漆節能和降低能耗費用十分顯著，能耗費用降幅達到88 。與熱風爐對流烤漆方式相比較，熱載體烤漆方法不僅節能，而且烤漆爐溫度場均勻穩定，同時烤漆的外觀質量也得到了明顯提高。
  12. Air convection drying

    空氣對流乾燥
  13. Simulation of heat and mass transfer in unsaturated soil under solar radiation and air convection

    大氣對流下未飽和土壤中熱質遷移過程的實時模擬研究
  14. In this paper, some factors influencing its temperature field have been synthetically analyzed including the ambient temperature, solar radiation, air convection and sky radiation, ground radiation and so on. the hourly temperature of the roof and walls of the tested building in summer and winter was calculated with the finite element software - ansys. the results from calculation had well consistent with the experimental results

    本文結合試點建築溫度場監測結果，理論分析了影響建築物溫度場的各種因素，包括：大氣溫度、太陽輻射、空氣對流以及天空輻射、地表環境輻射、建築物自身輻射等因素，總結了實用計算公式，採用有限元數值方法，藉助有限元軟體ansys進行了屋面和各方位墻體在自然環境作用下的溫度場模擬分析，與實測結果比較吻合。
  15. Natural modeling is suggested in chapter five to deal with the complicated indoor air convection

    第五章是討論如何模擬室內復雜的對流問題？
  16. The objective of the present dissertation is to investigate the modeling and characteristics of indoor air convection

    本文主要討論建築室內空氣環境中對流問題的模擬方法與基本特徵。
  17. Rapid : time of desiccation and sterilization is obviously shortened by repid temperature - rising, forced - air convection, direct passing of dry and hot air through heated object

    迅速：升溫快，強迫對流，乾熱空氣直接經過受熱物體、乾燥、消毒時間明顯縮短。
  18. Answer : there is no difference to energy. however, as mass volume air convection reduces body temperature, sweat occurs later, so the duration will be prolonged and you may catch cold

    答：對能量而言並無差別，不過因空氣大量對流，帶走體溫使發汗時間延後，當然使用時間就會延長，較容易著涼。
  19. In addition, the inner surface temperature with the effect of air convection in the detect is different from the one in terms of considering air heat transfer in the defect as conduction and the effect caused by radiation can be neglected

    考慮缺陷內空氣對流換熱的影響下得出的溫度與純導熱條件下得出的溫度存在較大誤差，輻射的影響可以忽略不計。
  20. Therefore a natural modeling of indoor air convection is to analyze the interaction between all the possible physical processes. the basic characteristics of indoor air convection are then determined by the prevailing physical process

    因此，模擬室內空氣對流傳熱傳質系統最自然的方法是分析室內可能發生的各種物理過程之間的相互作用，而在相互作用中明顯占優的物理過程將決定室內對流的基本特性。
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