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微液膜
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  micro-liquid film
     The main heat transfer mechanism of the above-cited heat transfer is based on the micro-liquid film evaporation at the bottom of pressured and deformed gas bubbles.
     狭缝两相流强化传热的主导传热机理是受压变形气泡底部的微液膜蒸发机理。
短句来源
  “微液膜”译为未确定词的双语例句
     3. The novel technique of micro-liquid membrane separation, enrichment and high performance liquid chromatography analysis and its application in biological fluids have been carried out.
     3.微液膜分离富集-高效液相色谱分析新技术及其在生物体液分析中的应用研究。
短句来源
     The boiling heat transfer in a narrow channel is characterized by flat bubbles and isdominated mainly by the microfilm evaperation mechanism, Heat is transferred to the main-flow fluid through a thin liquid film beneath the flat bubbles. The dimension of the narrowchannel has a direct influence on the heat tranfer.
     狭缝中液体的沸腾换热是以变形的扁平汽泡为特点的,以微液膜蒸发为主导机理,热量通过扁平汽泡底部的液膜传给主流流体,试验结果表明:狭缝间隙尺寸对传热有直接影响,当间隙尺寸为0.5~1.0mm时,狭缝沸腾换热系数比光管增加3~5倍,达到人工烧结多孔表面管相当的水平;
短句来源
     The boiling heat transfer rate in a narrow gap is much higher than that in a pool, and its heat transfer mechanism is dominated by the evaporation of thin liquid film under deformed bubbles.
     狭窄空间中的池沸腾传热强度高于大空间池沸腾,其主导传热机理是受压变形气泡底部的微液膜蒸发机理。
短句来源
     The geometric parameters of micro structures greatly influence the boiling heat transfer performance of porous surfaces.
     为了研究多孔槽道几何参数对多孔表面沸腾换热性能的影响 ,从分析多孔结构内微液膜蒸发和气液两相流的机理出发 ,借鉴微热管的研究方法 ,建立了描述多孔表面沸腾换热的细观动态模型。
短句来源
     As the inclination angle is varying, the wall superheat for the same heat flux is varying accordingly, and the role of the sliding bubbles and the microfilm evaporating mechanism in these channels is also different.
     加热面所处角度不同 ,在相同热负荷下壁面过热度亦不同 ,滑移汽泡和微液膜蒸发机理在通道中发挥的作用也相应不同。
短句来源
  相似匹配句对
     8) liquid membrane(L): separating salts and biological activity materials.
     (8)(L)。
短句来源
     RESEARCH FOR THE ANTIDOTE OF LIQUID FILM
     解毒的研究
短句来源
     L-B Films
     L-B
短句来源
     Study of clarification of scutellaria baicalensis georgi extract by ceramic micr ofiltration membrane
     陶瓷滤澄清黄芩提取的研究
短句来源
     DISPERSION BEHAVIOR OF MEMBRANE SUSPENSIONS FOR CERAMIC MICROFILTRATION MEMBRANES
     陶瓷的分散性能研究
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The boiling heat transfer in a narrow channel is characterized by flat bubbles and isdominated mainly by the microfilm evaperation mechanism, Heat is transferred to the main-flow fluid through a thin liquid film beneath the flat bubbles.The dimension of the narrowchannel has a direct influence on the heat tranfer.The heat transfer coefficient is increased by3~5times in comparison with a bare tube in a liquid pool with the gap interspace of thechannel changing from 1.0mm to0.5mm,It has been found from the experiment...

The boiling heat transfer in a narrow channel is characterized by flat bubbles and isdominated mainly by the microfilm evaperation mechanism, Heat is transferred to the main-flow fluid through a thin liquid film beneath the flat bubbles.The dimension of the narrowchannel has a direct influence on the heat tranfer.The heat transfer coefficient is increased by3~5times in comparison with a bare tube in a liquid pool with the gap interspace of thechannel changing from 1.0mm to0.5mm,It has been found from the experiment that theheat transfer will be greatly enhanced when the flow regime inside the channel is changed tothe annular flow from slug flow,An activation area with1/10 of length of whole testing sam-ple is formed at the entrance of the narrow channel by a matrix of artificial re- entrant cavi-ties,The artificial activation will make the flow regime change occur earlier at small heat fluxand thus further enhancing the heat transfer of the narrow channel。

狭缝中液体的沸腾换热是以变形的扁平汽泡为特点的,以微液膜蒸发为主导机理,热量通过扁平汽泡底部的液膜传给主流流体,试验结果表明:狭缝间隙尺寸对传热有直接影响,当间隙尺寸为0.5~1.0mm时,狭缝沸腾换热系数比光管增加3~5倍,达到人工烧结多孔表面管相当的水平;当狭缝通道中流型大部分转变为环状流时,传热效果达到最佳状态;对1/10长度的狭缝通道起始段采用人工凹孔表面处理,使这种流型转变在较小热流密度下提前发生,换热系数进一步提高,传热温差进一步下降,随间隙减小,这种趋势尤为明显.

The enhancing boiling heat transfer method by narrow charmels is an econonncal and efficient method. From analyzing the boiling heat transfer mechanism—the microfilm evaporating mechanism, we consider that the enhancement boiling heat transfer by narrow channels is actually to enhance the microfilm evaporating process and by enlarging the area of the microfilm the boiling heat transfer could be enhanced. For the less critic heat capacity of the boiling heat transfer in narrow channels, it is essential to take...

The enhancing boiling heat transfer method by narrow charmels is an econonncal and efficient method. From analyzing the boiling heat transfer mechanism—the microfilm evaporating mechanism, we consider that the enhancement boiling heat transfer by narrow channels is actually to enhance the microfilm evaporating process and by enlarging the area of the microfilm the boiling heat transfer could be enhanced. For the less critic heat capacity of the boiling heat transfer in narrow channels, it is essential to take measures to add liquids into where the bubbles emerge.

利用窄通道强化沸腾换热是一种既经济又有效地强化传热方法。从核沸腾传热的微液膜蒸发机理出发,通过分析认为:利用窄通道强化沸腾换热,实质是对液膜蒸发过程的强化,并指出扩大微膜面积可强化沸腾换热;针对窄通道沸腾换热临界热负荷小的事实,提出了可通过及时补液的克服方法。

The boiling heat transfer rate in a narrow gap is much higher than that in a pool, and its heat transfer mechanism is dominated by the evaporation of thin liquid film under deformed bubbles. The extreme eccentric annulus has the same effective heat transfer mechanism, as well as its own characteristics: the sharp-angled region acts as an artificial vaporization nucleation, and the wide gap region supplies liquid. An experiment is performed for liquid nitrogen in this paper. It is assumed from the study result...

The boiling heat transfer rate in a narrow gap is much higher than that in a pool, and its heat transfer mechanism is dominated by the evaporation of thin liquid film under deformed bubbles. The extreme eccentric annulus has the same effective heat transfer mechanism, as well as its own characteristics: the sharp-angled region acts as an artificial vaporization nucleation, and the wide gap region supplies liquid. An experiment is performed for liquid nitrogen in this paper. It is assumed from the study result that this type channel has a well heat transfer behavior, and its heat transfer coefficient is about 3-5 times of that of smooth tube.

狭窄空间中的池沸腾传热强度高于大空间池沸腾,其主导传热机理是受压变形气泡底部的微液膜蒸发机理。而极限偏心环缝通道不仅有利于微膜蒸发机理的有效实现,更有其自身特点:尖角处具有人工气化核心作用,还兼有宽缝区的供液功能。文中以液氮为工质进行了相关实验,结果表明,该结构形式的通道具有很好的换热性能,换热系数为同等热流密度下光管的3~5倍。

 
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