传热

On the basis of the experimental study, the augmentation mechanisms in internally ribbed tube and tube with micro-grooves are studied.

在实验研究的基础上，对内螺纹管和微结构槽管中的强化传热机理进行了研究。

Based 188F gasoline engine heat load studies, the research unit based on Using AutoCAD software for the design cylinder sleeve, and then use the software PRO-E 3D modeling, and the calculated and experimental analysis to determine the reference cylinder heat transfer across borders, reuse finite element analysis software ANSYS right cylinder mathematical analysis, systematically on the finite element method in 188F cylinder gasoline engine design of the application, in-depth study of the thermal load on the performance and reliability, as relates to structural strength, stiffness, temperature and so on.

本文以188F汽油机热负荷为研究对象，在研究整机的基础上，利用AUTOCAD软件进行汽缸套的设计，然后用PRO-E软件进行三维建模，并通过计算解析和实验参考确定了气缸套各处的传热边界条件，再利用有限元分析软件ANSYS对气缸套进行数学分析，系统地探讨了有限元法在188F汽油机缸套设计中的应用，深入研究了其热负荷对性能和可靠性的影响，内容涉及到结构强度、刚度、温度场等方面。

The results indicate that the uniformity of temperature difference in panel heat-exchanger can be the directive effect in the design of heat exchange system with small temperature difference, and the heat pump technology is one of the effective measures in the rundle using o...

结果表明换热器传热温差的均匀性原则对小温差换热系统设计有指导作用；热泵技术是地热能梯级利用的有效措施之一。

At Hopkins he conducted research on infrared radiation with funds provided by the Office of Naval Research. During his sabbatical year, at Michigan State University in 1954–55, he gained access to a large computer and realized it offered the perfect way to construct a better model of radiative transfer. In 1955 Plass moved out of academics, serving for a year as a staff scientist with Lockheed Aircraft Corporation. He then joined the advanced research staff of the Aeronutronic division of the Ford Motor Company.

他在霍普金斯大学进行了红外放射的研究，经费由美国海军研究局提供。1954至1955年他在密歇根州立大学休了一学年的假，期间接触到了大型计算机，并意识到这是改进辐射传热模型的理想工具。1955年，普拉斯离开了大学，在洛克希德飞机公司做了一年的科研人员，随后作为高级研究员加入了福特汽车公司的Aeronutronic部门。

The mathematical model computes the one-dimensional distributions of air temperature and moisture content along the path of air flow in the saturator.

理论上，本文推导了饱和器性能控制方程，建立了饱和器内传热传质过程的一维数学模型。

When the saturated vapor of pure R11 or R113 was condensed on the PF tubes under free convection conditions, the HTCs (based on the outside area of the base tube, the same be1ow) were 14 to 20 times those of the smooth tube because the condensate surface tension made the condensate film on fin surfaces thin and the rough saw-toothed fin surfaces disturbed the boundary layer in the condeneate film.

纯R11、R113的饱和蒸气在大空间花瓣形翅片管上冷凝时，由于凝液的表面张力将翅片表面上的液膜拉薄以及粗糙的锯齿形的翅片表面扰乱了凝液膜内的流动边界层，传热膜系数（以坯管外表面积为基准，下同）是光滑管的14—20倍。

Objective To analyze heat transfer process in skin tissues subjected to hot water and thus to predict the extent of scald.

目的研究生物组织热水烫伤过程的传热规律及影响因素并由此进行烫伤程度预测。

Based on the radiation characteristic of air speedy object, taking into account the synthetic influence factors of the real configuration of object, sun radiation, space long-wave radiation and the environment radiation around object, a further study for the effect of scarfskin pneumatic heating up, used equivalent resistance to estimate inner heat-resource and gave prominence to the influence on scarfskin radiation caused by engine heat-scattering, a logical and effective IR imaging simulation model for airplane is presented in this paper.

从红外辐射和热传导基本定律出发，综合考虑目标实际结构、太阳辐射、天空长波辐射、气动加热及周围环境辐射等因素的影响，依据空中快速目标热辐射特性，分析气动加热对飞机蒙皮辐射的作用，运用等效热阻对内热源部分进行估算，突出发动机传热部分对飞机整体辐射产生的影响，并建立一种可靠实用的空中飞机红外成像仿真模型，仿真过程中结合对空实拍红外图像进行动态调整，目标模拟结果真实感较强。

scatheless measurement ; numerical simulation ; helium pressure

利用氦气在不同压力下具有不同的状态参数和热力参数，可以通过传热方法测量包壳内的氦气压力。1试验装置和研究方法如图1，把燃料棒浸入到一个高温的池子内，热量会在燃料棒内传递开来，通过测量管壁外面不同位置出的壁面温度，就可以推测到包壳内的氦气压力

In this paper a two-dimensional model has been established for the second class boundary condition to investigate the heat and mass transfer process inside the zeolite-water adsorption bed.

建立了沸石-水吸附式制冷系统吸附床在非第一类边界条件时的二维传热传质模型。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。