This is helpful for the control of natural convection.
这为自然对流的控制提供了一定的理论依据。
Convection can be of two types: natural convection and forced convection.
对流可分为两类，即自然对流和强制对流。
It is discovered that the natural convection gas has the pendulum characteristic.
发现了密闭腔中自然对流气体有摆现象。
This paper has analysed theoretically the natural convection heat transfer in the HFETR core.
本文对堆内自然对流放热进行了理论分析。
The effects of natural convection and moving of solid PCM on melting heat transfer are compared.
固态相变材料的运动对熔化传热过程有着重要影响。
Air natural convection around horizontal pipe is a compound heat process of convection and radiation.
空气在横管外自然对流是对流和辐射的复合传热。
The temperature boundary layer of a natural convection along a vertical heated plate is measured quantitatively.
对沿竖直加热平板自然对流的温度边界层进行了定量地测量。
Based on volume averaging theory, natural convection model for melting phase change in porous media was established.
根据体积平均理论，建立多孔介质中融化相变过程自然对流模型。
The application of virtual instrument in the natural convection experiment of horizontal pipes fixed in a large space.
虚拟仪器在大空间水平管自然对流传热实验中的应用。
Using numerical method, natural convection in enclosure combined with conduction ana radiation is analyzed in this paper.
本文用数值方法分析了封闭空间自然对流与导热、辐射的复合换热。
The effect of variable properties on natural convection heat transfer in horizontal concentric circular annulus was studied.
研究了变物性对水平同心套管夹层中自然对流换热的影响。
We studied the natural convection in narrow double-side heating arc by mock-up tests and numerical simulation in this thesis.
本文对双面加热的圆弧形窄缝通道内重水的自然对流进行了模化试验和数值模拟。
There is no buoyancy and natural convection at microgravity condition, which will affect the fundamental process of combustion.
在微重力条件下不存在浮力和由其引起的自然对流，从而影响了燃烧基本过程。
It is discovered that the natural convection gas has the pendulum characteristic, so the new concept of gas pendulum is presented.
根据自然对流气体具有摆的特性，从而提出气体摆新概念。
Simple solar dryers, constructed from a wooden frame covered with plastic, let the light in, keep insects out and use natural convection.
这种简单的太阳能干燥装置是用一种覆盖了塑料膜的木架制成的，能够让阳光进入但是挡住了昆虫，而且还利用了自然对流。
The results show that natural convection can be formed on condition that the body force acting on the fluid is a non-conservative one.
结果表明：只要流体所受体积力为非保守力，即可产生自然对流。
Zinc stearate particles has proved out to be a good trace material for visual display of natural convection flow pattern in enclosure.
实验结果表明，硬脂酸锌粉粒是显示空气自然对流流动的比较理想材料。
The calculated results show that the natural convection shouldn′t be neglected for molten steel flowing in tundish because of heat loss.
计算结果表明，高温钢水在中间包内流动时，不能忽略自然对流流动；
The complex heat transfer of turbulent natural convection combined with surface radiation in open cavities is analyzed by numerical method.
用数值方法分析了开口空腔中的湍流自然对流与表面辐射相互耦合的复杂传热。
The computation result and predictor test show that this procedure can fully reflect conjugate conduction with natural convection in enclosure.
数值预测结果表明：该方法能够真实反映室内环境。
And to avoid disasters similar to Fukushima, where the pumps used to circulate the water failed, the miniature reactor will use natural convection.
为避免日本福岛核泄漏那样的灾难，若水循坏的水泵发生故障，微型核反应堆会使用天然对流。
The numerical simulation of the velocity field and temperature field of the natural convection in porous medium with a trapezoid space was conducted.
本文对填充有多孔介质的梯形空间内的自然对流的流场和温度场作了数值计算。
Natural convection, natural wind and sun radialization bring the change of temperature. The most important factor is natural wind and sun radialization.
碎块石护坡和路基内的温度场受到自然对流、强迫对流和太阳辐射的影响，其中最主要的影响因素是强迫对流和太阳辐射。
This paper deals with the natural convection temperature field of unlimited heated Plate with schlieren shearing interferometry of double frequency gratings.
用双频光栅纹影剪切干涉法对无限热平板的自然对流温度场进行诊断。
Natural convection around a horizontal, isothermal cylinder in an infinite, fluid-saturated porous medium is modeled analytically using the Darcy flow model.
本文运用达西流模型，对饱和含湿多孔介质中环绕水平等温圆柱发生的自然对流进行了数值模拟和分析。
This paper offers the measured distribution of the surface temperature of horizontal finned tube along the circumference in natural convection heat transfer.
实测了水平肋片管在自然对流换热条件下圆管表面温度在圆周方向上的分布。
Then, the vector potential and vorticity equations and the method of the false transient are applied to compute the three-dimensional viscous natural convection.
然后利用矢量势和涡方程以及人工瞬变方法计算封闭腔中水的三维粘性自然对流。
The tank is cylindrical with certain height, which can make fermenting liquor natural convection form top-down or bottom-up, is advantageous in temperature control.
罐身为圆筒形，具有相当高度，可以使发酵液形成自上而下或自下而上地自然对流，有利于麦汁发酵液温度控制。
Numerical results show that natural convection is strong on the top of the melting region and angle between melting interface and horizon increases with melting time.
数值结果表明，在融化区上部发生较强烈的自然对流，融化界面与水平线倾角随融化时间越来越大。
Numerical results show that natural convection is strong on the top of the melting region and angle between melting interface and horizon increases with melting time.
数值结果表明，在融化区上部发生较强烈的自然对流，融化界面与水平线倾角随融化时间越来越大。
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