传热

Heat transfer performance of a plate-fin recuperator was studied experimentally and numerically in this paper.

对板翅式回热器的传热性能进行了实验和数值模拟，对板翅式回热器的传热性能以及其温度场和速度场的情况进行了分析，为今后的此种换热器的设计与改进提供了一定的理论依据。

This paper represents a numerical method to simulate the complex heat transfer in a radiant metal recuperator .

应用蒙特卡洛法仿真辐射式金属换热器内的辐射传热过程，建立了换热器综合传热的数学模型。

Based on the experiments, the relations between the Nusslt number Nu, and Reynolds number Rc are obtained by wall-temperature method, and it is analysised that the economy and the manufacturing method of a helical recuperator.

本文在较大的迪恩准数范围内用壁温法研究了螺旋回热器的传热性能，得到了其传热性能关系式，并分析了螺旋回热器的制造方法及其经济性能。

Some sub-models of the original KIVA code were modified, by introducing into the Kelvin-Helmholtz and Rayleigh-Taylor model for spray breakup, the multiple laminar and turbulent characteristic timescale combustion model, the heat transfer model of Han and Reitz, the Hiroyasu and Nagle soot model and the improved Shell auto-ignition model were added to the original KIVA, to improve the predictions of engine spray, ignition, combustion, gas/wall heat transfer and emissions.

为提高模拟精度对标准的KIVA程序进行了改进，引入KH-RT雾化模型、层流和湍流多重特征时间尺度燃烧模型、Han和Reitz传热模型以及Hiroyasu和Nagle碳烟排放模型来模拟柴油机多次脉冲喷雾、燃烧、壁面传热及排放过程，同时增添改进的Shell自燃模型来模拟着火过程。

Considering the two facts mentioned above, the best tilt angle is 2. The influence of gas injected to turbulent water and total heat transfer factor in various Reynold number is investigated.

通过对燃气加热和水浴传热过程进行数值计算，考察了喷射气体在不同雷诺数下对水浴湍流以及对总传热系数的影响。

Both Neumann and Robbin conditions for heat and moisture migra-tion in the surface are included.The numerical results are presented and discussedin full details.The influences of different natural environmental factors on the heatand moisture transfer are analyzed.

对第二类传热边界条件及第三类传热边界条件下土壤内热湿迁移过程进行了数值模拟，并对计算结果进行了系统的讨论和分析，获得了不同环境因素对土壤中热湿迁移过程影响的基本规律。

The sequential quadratic programming method was used to optimize the structural sizes of microchannel.

优化结果表明：微槽冷却热沉的结构形状对传热性能有很大的影响，与三角形和梯形结构相比，矩形微槽结构的传热效率更高。

This Paper mainly introduces the set uP. of the mathematic model, the mathematic choice of simulation algorithm, the content of the computer simulat...

本文主要介绍了连续铸钢凝固传热过程数学模型的建立、仿真算法的数学抉择、连续铸钢凝固传热过程计算机仿真软件包的主要内容及该软件包应用于实际的结果分析等。

Based on the gas heat transfer theory, a kind of gas heat transfer strengthener is developed to solve the low efficiency of the boiler heat transfer on the gas side.

针对目前锅炉内烟气侧换热效率低的问题，基于气体传热原理的分析，开发了一类气侧传热强化器。

Heat transfer ofs teel in molten pool is computed,and the influence of technical factors considered.

在此基础上，计算了熔池区域钢液的传热过程并分析了工艺因素对传热的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。