convective flow 中文意思是什麼

convective flow 解釋
對流
  • convective : adj. 1. 有傳送力[運輸力]的，傳送性的。2. 【物理學】對流的。
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. Heat transfer coefficient，comprising convective and radioactive components may strongly depend on the actual flow enthalpy and density.

    由對流和輻射兩部分組成的熱交換系數極大地依賴于實際活動的焓和密度。
  2. Based on analysis of geologic foundation record about pingzhuang basin, a lot of sino - foreign geothermal geology record and investigation of field geology, measuring of ground temperature in person and geo - chemical analysis of ascension spring, gushing water of fault, the fact that the anomaly of geothermal gradient of pingzhuang basin, which is in region of low geothermal gradient, is caused by redistribution of conduction - oriented geothermal heat flow which is result from upheaval and depression of basin foundation bed is pointed out. after the field of ground temperature is simulated under the background of conduction - oriented geothermal heat flow by means of ansys, the characteristic of ground temperature distribution of top surface of basin foundation bed ( yixian team ) is revealed. the sound condition of transmissibility fault and feeding water source, which are imperative in formation of the low - medium temperature geothermal system of convective type, is possessed in pingzhuang basin

    通過對平莊盆地基礎地質資料、國內外大量地熱地質資料的分析和野外地質調查、礦井實測地溫以及上升泉、斷層涌水的地球化學分析等工作基礎上，指出地處低地溫梯度背景區的平莊盆地地溫梯度異常是由於盆地基底隆起和坳陷引起傳導型大地熱流再分配所致；運用州sys數值模擬了大地熱流向地表傳導背景下的盆地地溫場，從而揭示了盆地基底（義縣組）頂界面地溫分佈特徵；闡明了盆地具有形成中低溫對流型地熱系統所必需的導水斷裂、補給水源等的良好條件，中低溫對流型地熱系統是地熱勘查的主要對象；圈定了平莊盆地北部朝陽溝?駱駝營子地熱勘查遠景區。
  3. 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。
  4. 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。
  5. The model simulations indicate that the severe storm is occurred in the pattern high - level of northwest flow, the waterjumping downhill flow form taihang mountain is the key mechanism to initiate the convective, on the other hand, the terrain can induce unbalanced low - level flow, which play an importance role in generating the mesoscale gravity waves ( mgws ) by convergence and divergence in low - level troposphere

    （ 2 ）太行山對華北強對流風暴的發生有重要作用。一方面，地形可引起邊界層風場的變化，包括風垂直切變、下坡氣流和中尺度輻合線，從而對風暴的啟動、組織和移動發揮作用；另一方面，山脈背風波動和地形產生的不平衡氣流，有利於中尺度重力波（ mgws ）的產生和維持，並對下游地區強對流天氣的發展產生影響。
  6. The phenomenon of convective heat transfer in a pipe flow exits universally in many industrial areas, therefore, how to enhance heat transfer and how to save energy sources are an important investigation domain

    流體流動中的換熱現象普遍存在於工業的各個領域中，因此如何強化換熱、節約能源是一個重要的研究領域。
  7. The results show that there are two centers of occurrence of llsw respectively in dong bei and jiang nan ; the regional torrential rain over the yangtze river basin is closely associated with llsw during the major periods of heavy rainfall ; the diurnal variation of the number of occurrence in the middle and low reaches of the yangtze river is the strongest in china there are some significant differences between llj and nallsw in positive season, spatial variation, diurnal variation and field of pressure. by the way, the important effect of inertial stability on heavy rainfall with both low level south - westerly jet and high level northerly strong flow is analyzed theoretically. the results show that the existence of the maximum of inertial stability in the left font of the low level jet is favor of the accumulation of the moist thermal energy, and conditional symmetric instability or convective instability can be expected in this region

    另外，慣性穩定性的作用以往不受重視，本文通過對西南低空急流左前方和高空偏北大風軸右後方的慣性穩定性和對稱穩定性的理論分析和實例計算，表明慣性穩定性在伴有高低空急流的暴雨中有重要意義，揭示了梅雨暴雨的一種新的高低空急流耦合機制：低空急流左前方慣性穩定度大值區的存在，有利於低層濕熱能量的積累，使低層傾斜對流的不穩定發展更多期望于條件性對稱不穩定或對流不穩定；高空偏北大風軸（西風急流）的存在，是其右後方（右側）出現對稱不穩定的有利條件，高空相對容易出現干對稱不穩定；慣性穩定性的作用，使低層的傾斜對流更偏向於垂直方向，有利於對流發展，使高層的傾斜對流更偏向於水平方向，有利於高層輻散。
  8. Just under this urgent consideration, based on the fact that self - oscillation can produce pulsation of flow, to influence the flow boundary layer, thus to increase convective heat transfer coefficient, it is necessary to devote to the mechanism of self - oscillation and apply it to a heat exchanger

    正是在這種迫切要求下，基於自激振蕩能產生脈沖流動而影響流動邊界層從而提高對流換熱系數來強化換熱的考慮，需要開展對自激振蕩的機理及其應用的研究。
  9. The characteristic of flow and heat transfer in the annular curved eccentric pipes were studied. the convective heat transfer equation and numerical simulation were based on it

    摘要討論了環形偏心圓截面彎管內的對流換熱特性，並在此基礎上建立了對流換熱方程。同時採用數值模擬的方法分析了環形偏心圓截面彎管內的流場分佈。
  10. The dynamical structure of the convective system at cl imax is studied and the air flow field is dep i cted. the ana i yses further show that north j i angsu and north annul is water vapor source of the rainstorm, and the inclining flow of wet air mass in pbl is the main water pass of convective systems

    淮北、蘇北是魯南暴雨區對流層中下層氣流的源地，其充沛的水汽是此次過程前期水汽條件改善的重要原因，除水汽平流造成比濕增加外，對流層70ohpa及850hpa較強的上升運動也是該層次濕度增加的重要因素。
  11. Analysis of two - phase annular flow convective evaporation in horizontal microfin - tube

    水平微翅管內環狀流兩相強制對流蒸發換熱的計算模型
  12. Airflow in cylinder exists in the form of turbulent flow. in order to calculate the convective exchange of cylinder, we have to know the characteristic length and the characteristic velocity of airflow

    氣缸內氣流是以紊流形式存在，在計算氣缸對流傳熱時要知道氣流的特徵速度和特徵長度。
  13. The machine can press liquid material into centrifugal nozzle to spray micro fog drops that will drying in the tower relaying on convective flow with hot air

    本機是將料液壓入壓力噴嘴霧化成微小霧滴，在塔內與熱風以對流的方式完成乾燥，獲得顆粒產品。
  14. The numerical solution shows that the optimal velocity field for laminar convective heat transfer in tubes is multi - longitudinal vortex flow

    數值求解表明，管內層流對流換熱的最優速度場為多縱向渦流態。
  15. Consequently, a field coordinated enhancement method by longitudinal vortex flow for convective heat transfer enhancement in tubes is presented

    提出了採用多縱向渦強化管內對流換熱的場協同強化方法，並進行了數值分析。
  16. It is showed by numerical calculation that the waves amplify becomes great and the width of waves becomes narrow after the collision or chase of two solitary gravitational waves. the results indicate that the nonlinear interaction between the gravitational waves may be one of the causes for outbreak of severe convective weather. furthermore, by comparing once shear with second shear, we find that it is easier to breaking up or energy dispersion for the solitary gravitational waves by the nonlinear action when the distributing of basic flow is once shear

    引入實際基本氣流，分別討論了具有垂直一次切變和二次切變流時兩個非線性重力波相互作用的數值計算過程，得到兩個重力波波包相遇或相追都會使波包的振幅增加、波寬變窄；進一步分析表明，有高空急流存在的條件下，非線性重力波的相互作用更易使波包破碎、能量頻散，激發強對流天氣的形成。
  17. The flow characteristics and convective heat transfer performance of water and sdbs solutions is also tested to compare with nano particle suspension

    為對比分析還測試了水和分散劑溶液的流動與換熱特性。
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