查询词典 convection

Through this material one could setup an overall impression of the study content and the study method.In order to investigate the basic heat transfer characteristics of regeneratively cooled scramjet, in the second chapter, one dimensional heat transfer model of regeneratively cooled scramjet was developed. In this model, N-R correlations were used to describe hot gas-side and coolant-side convection heat transfer. Simple model of gas properties was also used.

为了初步了解超燃冲压发动机再生冷却传热的基本特征，第二章建立了超燃冲压发动机再生冷却的一维传热数理模型，采用了准则关系式描述燃气侧和冷却剂侧的对流换热，采用了简化的燃气物性模型，并对衬层材料、衬层厚度和冷却剂流量进行了参数研究。

"I wanted to wish you the best of luck on the -- is that ebony?"It was indeed. Saccus had bought the finest quality ebony weave available in the Imperial City as soon as he heard of the competition and had begun the process of smelting it. Normally it was a six month procedure refining the ore, but he hoped that a massive convection oven stoked by white flames born of magicka would shorten the operation to three days. Saccus proudly pointed out the other advancements in his armory. The acidic lime pools to sharpen the blade of the dai-katana to an unimaginable degree of sharpness. The Akaviri forge and tongs he would use to fold the ebony back and forth upon itself.

没错，萨卡司一听到竞赛，就在帝都买了品质最好的黑檀石，然后开始熔炼它的过程，提炼这种矿石通常需要六个月时间，但是他希望由魔法产生的白色火焰可以缩短过程到三天，萨卡司还骄傲地指出了另一些进展，酸灰池可以把武士刀削尖到不能想像的锐利程度，Akaviri 锻造炉和钳子可以拿来前后折叠黑檀石。

The persistent vertical wind shear provides kinetic energy for development of mesoscale convective systems, therefore is beneficial to the slantwise development of convection cells, and to the occurrence of heavy rain at a fixed point.

持续的高空风垂直切变为对流系统的的发展提供动能，造成对流系统斜压发展，有利于降水集中在某一固定的地点。

The model of heat conduction caused by friction spark can be regarded as forced convection heat conduction issue of grazing spheriform which is outside of planar stable state boundary layer,so the mathematics analytic formula is presented and a few measures for preventing friction spark.

摩擦火花传热模型可看做是二维稳态边界层外掠球体的强制对流传热问题。

Inside the mixture system, convection and stratiform clouds will act on each other.

在积层混合云系的内部，对流云和层状云区不断地发生作用。

Precipitation of convection will diminish, while that of stratiform clouds will maintain, so the mixture clouds can bring stronger precipitation in a large area.

对流云的降水量不断减小，而层状云的降水不断维持，带来了大面积持续时间很长的降水。

And has brilliant prospect due to its simple structure, good economy and energy saving performance.Based on the full scale passive solar experimental building in DUT, in which the researcher carried experiment as the main method and the CFD simulation as the minor method, the research focuses on passive ventilation formed by the Trombe wall. This paper analyzed the indoor thermo and humidity performance of passive solar building with Trombe wall, and the different ventilation patterns in different seasons, revealing the role of passive ventilation in improving indoor environment. Also the paper researched the characteristics of passive ventilation on air flow and heat transfer mechanicsms, and put forward the best control and adjusting method. Meanwhile the paper gained an empiric formula in use of calculating the natural convection heat transfer and found the key factor of influing the indoor environment.

本研究以被动式采暖降温技术为依托，采用实验和CFD数值模拟的研究方法，重点研究了新型被动式太阳房在不同气候条件下室内热湿环境的动态变化规律，分析不同季节下被动式太阳房内不同的被动式通风模式以及不同被动式通风模式在改进室内热湿环境方面的作用：揭示了特定被动式通风流动和换热特性、控制与预测方法；得到了计算被动式通风对流换热量的经验公式以及影响室内热湿环境的关键因素；了解了含有特朗贝墙体被动式太阳房的自身优势和仍待改进的方面；在实体大被动式太阳房实验技术方面积累了一定的经验。

For periodic lid-driven velocity with 4 cm/sec, the number of plumes was reduced by 60% as compared to that of UDS without externally imposed forced convection.

在 4 cm/sec强制对流的实验比自然对流的实验减少了60%流道的形成。

In order to understand the mechanism of pollution process around insulator under the wet condition better,based on the principle of computational fluid dynamics CFD, the numerical model,which was used to analyze three-dimensional two-phase uncompressible turbulent flow field around composite insulator in wet weather and convection-diffusion of dust particles,was established.Then,the dynamic simulation of the general approach,which was used to analyze solid dust particles' wet deposition process around composite insulator with application of CFD software-Fluent,was proposed.

为深入了解绝缘子外部在湿润条件下的积污机理，基于计算流体力学原理CFD建立了求解湿润气象条件下复合绝缘子外部三维两相粘性不可压缩湍流流场的基本控制方程组和尘埃颗粒对流扩散的基本方程，提出应用CFD软件Fluent可对复合绝缘子表面固体尘埃颗粒湿沉降过程进行动态模拟的一般方法。

The present experiment demonstrated that the unhomogeneity of surface tension induced by gradient magnetic field near the surface of liquid could lead to surface deformation, the quantity and direction of deformation are directly related to the distribution of gradient filed, and a new way to the research of the kinetics of Buoyant-Thermcapillary Convection is proposed.

得到了结论：液体表面附近处的梯度磁场将引起表面张力的不均匀而使其发生变形，变形量及方向与磁场强度和梯度的空间分布有直接关系，为浮力-热毛细对流的相关研究提供一种新的途径。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失