对流

This research supplied a new way for the design of pipe die for extrusion.

分析讨论了机头几何要素、物料物性和工作参数等改变时对流道压力场和速度场以及机头出料均匀性的影响。

The conditions in a protostar resemble far more closely in situation in red giants, most of whose volume is caught up in stormy convection.

原恒星的条件更加类似于红巨星的情形，红巨星体积的大部分都卷入剧烈的对流中。

That is what Bo Yang, the Chinese writer from Taiwan has categorized as "Phenomenon of Soybean Paste Pot" in Chinese culture.

我希望我的这本小书可以起到一点对流的作用，为传统文化注入一缕清风。

This article mainly is analyzed the empirical datum of the Heat Transfer in the High Gravity Rotary Device of Countercurrent Flow, and discussed the heat transfer influence, example for intake and outtake temperature of cold and thermal fluid, current capacity, rotational speed and so on.

本文对逆流超重机的传热进行了研究，通过查阅大量关于超重力技术和直接接触传热的资料，综合分析出超重力场下的传热属于冷热流体直接接触的对流传热。流体在高速旋转中产生的强大离心力即超重力，使气液的流速及填料得比表面积大大的提高而不液泛。

In calculation, it was assumed that nozzle flow was frozen, and convective and radiative heat transfer from gas to nozzle wall was considered. Governing equations were discretized with second order upstream scheme and radiative heat transfer equation was solved with Discrete Ordinates method.

在计算中，假定喷管流动为冻结流动，考虑燃气向壁面的对流换热和辐射换热；采用二阶迎风格式离散控制方程，采用DO模型离散求解辐射换热方程，水蒸气的吸收系数根据Leckner公式计算。

Nozzle flow was assumed to be frozen, and convective and radiative heat transfer from gas to solid wall was considered. Discretization of the governing equations was performed with two order upstream scheme, and radiative heat transfer equation was solved with Discrete Ordinates method. Absorption coefficient of water vapor was calculated by Leckner formula.

计算中，假定塞式喷管中的流动为冻结流动，考虑燃气向壁面的对流换热和辐射换热；采用二阶迎风格式离散控制方程，及DO模型离散求解辐射换热方程，水蒸气的吸收系数根据Leckner公式计算。

The radiative properties of syngas mixture were calculated by weighted-sum-of-gray-gases model. The Ranz- Marshall correlation for Nusselt number was used to account for convection heat transfer between gas phase and particles. The discrete ordinates model was used for modeling of the radiative heat transfer, and the effect of ash/slag particles on radiative heat transfer was considered.

温度场计算肘基于灰气体加权和模型与离散坐标法相结合的方法求解热辐射方程，同时考虑了煤渣颗粒的热辐射和散射影响，利用Ranz-Marshall关系式计算气固相间对流换热作用。

Thus for a pulse tube cooler working on the ground or near the ground, the effect of the natural convection should fully taken into account in the design,.

当脉管的倾斜角在范围内时，所计算脉管内的自然对流散热量可高达4W~8W ，这显然会严重影响脉管制冷机的性能。

The quasi steady state analytical method is used to calculate the temperature in the heat structure.

用集总参数法来计算热传导；在正常的工况下，用含两个传热区的两相对流传热模型，计算流体与管壁间的换热。

The temperature distribution within the droplet is obtained from a solution of Laplace's equation, where quasi - steadiness and neglect of convection terms in the heat equation can be justified for small, slowly evaporating droplets.

水滴的温度分析可有拉普拉斯方程得到，其稳定性与忽视在热平衡中的对流条件被证明正在蒸发的水滴微小且缓慢的变化。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。