查询词典 transfer coefficient

Corrugated pipe ; numerical simulation ; heat transfer coefficient ; formula for heat transfer

波纹管；数值模拟；传热系数；传热准则方程

It is found that the smaller the gap width, the bigger the heat transfer coefficient. And numerical calculation with k-ε-uv model has been performed to calculate the superheated vapor convective heat transfer.

本文采用k-ε-uv模型对环形狭缝通道内过热蒸汽换热与流动特性进行了数值计算分析，计算结果和实验结果符合的很好。

Using the opened thermosiphon of 38x3 as experimental element and water as working fluid,the characteristics of dynamic low load boiling,stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0.02-0.1MPa and 0.1-0.8MPa respectively,which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas.

本文以工程上常用的Φ38×3的开口封底为实验元件，以水为工质，对开启式热管内的动态低负荷沸腾、稳态旺盛沸腾及临界沸腾特性进行系统的可视化实验研究，实验压力为0.02～0.8MPa，实验得出了Φ38×3的开口封底管在工作压力为0.02～0.8MPa和0.1～0.8MPa下的管内沸腾传热系数及临界热负荷计算关联式，弥补了开口封底管——这一新型传热元件尚无准确的沸腾换热关联式的缺陷。

With the kinetic parameters,such as charge transfer coefficient α and standard electron transfer rate co...

当pH为7.4时，动力学参数的计算结果表明，二者之间形成了一种具有电活性的超分子化合物。

Introducing the wet bulb specific heat capacity and the wet bulb heat transfer coefficient, a new mathematical model for the plate wet air cooler was developed based on the wet bulb temperature transfer characteristic.

分析结果表明壁面润湿率对冷却性能具有显著影响，而夹杂在空气中的液滴对传递过程的影响相对较小，工程计算可忽略夹杂液滴对传递模型的影响。

The longitudinal vortex generator is a new technique of enhanced heat transfer,this paper presents the effects of the longitudinal vortex in horizontal rectangled duct on the heat transfer coefficient and pressure drop.

纵向涡是一种新型的传热强化技术，其传热性能好，安装方便，使用可靠。以数值计算方法分析了在常壁温条件下纵向涡对换热器的传热性能以及流动阻力的影响。

Moreover, as the heat flux approach to CHF, numerous vapor mushrooms periodically extruded from the perimeter of fin array are observed. This mechanism will cause the dry-out situation in the central part of fin array. The closer fin spacing and longer fin length can provide larger heat transfer. However, the results also demonstrate that early decay on overall heat transfer coefficient as the fin spacing is closer or fin length is longer.

此外，间距0.5mm且高度4mm的鳍片阵列，其热传系数并不随热通量的升高而增加，在中高热通量区，其热传系数保持在一固定值，而其它低深宽比的鳍片阵列，热传系数则是随著热通量升高而增加，到了高热通量区，热传系数会有一最大值，之后会随热通量增加而递减。

Among all of the cooling technologies, the impingement cooling is the most potential one to enhance local heat transfer coefficient. The impingement of the jet forms high speed airflows on the cooled surface. These airflows can be used to improve local heat-transfer conditions significantly especially in the area with very high heat flux and temperature.

在所有提高传热的技术中，冲击冷却对于提高当地的传热系数具有最大的潜力，其冲击所形成的高速气流，极大的改善了当地的换热状况，特别适用于局部高温的地区。

The results show that the precooling time of the probe is shortened significantly with the help of the vapor liquid separator, and decreases with the driven pressure. With the helical coiled wire and the helical mesh, significant thermal Oscillation corresponding the density-wave is observed in the precooling time. The average heat transfer coefficient enhances 1.5 times with the mentioned heat transfer enhancement techniques, and the temperature of the 2.5 min cryoprobe surface can reach -160℃ in 17℃ brine within 10 min.

结果表明：使用了快速预冷汽液分离器后，探针预冷时间大大缩短，并随驱动压力增大而减小；加入螺旋丝和螺旋丝网后，在预冷阶段出现明显的热力振荡，并伴有密度波振荡，平均换热系数为原来的1.5倍，在17℃生理盐水中10min时2.5min探针表面温度最低可达－160℃，大大提高了探针的冷却性能。

A rib heat transfer model is then used to calculate the equivalent heat transfer coefficient of the blade passa...

在汽轮机转子的温度场与热应力场有限元分析中，该计算方法为确定叶轮轮缘的传热边界条件提供了依据。

Results showed that 0.01g/mL extract of Oxalis corniculata L. had obvious antimicrobial effect on S. aureus, but all extract of Oxalis corniculata L has not any antimicrobial effect on E.

结果表明，0.01g/ml的提取物对摇床培养的金黄色葡萄球菌生长具有明显的抑制作用；但各种浓度的提取物对摇床培养的大肠杆菌生长均无抑制作用。

This will be totally different from Zaro's texture mod, it will be desaturated, dirty etc.

这会和Zaro的那个材质补丁有很大不同，这边是更多的不饱和色，整个都灰扑扑的。