对流作用

而且，随着Ra数的增加，对流作用增强，三维流动特征更为显著。

And as the Ra number increase , the action of convection and the characteristic of three-dimensional flow become more obvious .

CA-LBM模型模拟自然对流作用下的枝晶生长

CA-LBM model for the simulation of dendritic growth under natural convection

结果表明，暖季粒径为5～8cm的碎石层热屏蔽作用要好于片石层，而冷季粒径为40～50cm的片石层对流作用要强于碎石层。

In warm season , the action of heat-shield on the ballast with diameters of 5-8 cm is better than that with diameters of 40-50 cm . In cold season , the action of convection is stronger than that with diameters of 5-8 cm .

散发汗水的一种方法是通过对流作用。

One of the ways to dissipate perspiration is by convection .

激光能量密度不同，对流作用不同。

The effect of convection differs with the laser power .

自然对流作用下的凝固过程数值模拟

Numerical Simulation of the Solidification Process Under the Effect of Nature Convection

相场法模拟对流作用下铝合金的枝晶生长

Phase-field Simulation of Dendritic Growth of a Binary Alloy Under a Forced Flow

混合对流作用下通风小室内流动换热的数值模拟

Numerical Modeling on the Flow and Mixed Convection Heat Transfer in a Ventilated Room

分析认为这是静磁场抑制对流作用的结果。

It is due to the fact that the static magnetic field can restrain the conversion .

在此处，对流作用对地下水污染系统的形成起至关重要的作用。

Here , the convection is of vital importance for the formation of groundwater pollution system .

暖空气因对流作用而上升。

Warm air rises by convection .

氨氮的一维入渗实验结果表明，氨氮在土壤中的迁移以对流作用为主。

The results of one-dimension infiltration experiments indicated that convection dominated on the movement of ammonia nitrogen in soil .

计算结果表明：沟槽内部二次涡的对流作用是沟槽减阻的主要原因。

The results indicated that the convection movement of secondary vortex is the main reason of riblet drag reduction .

根据场协同理论和数学模型说明了横向对流作用不能忽略。考虑横向对流作用和液滴的自对流作用可以增强热质传递性能。

Heat and mass transfer performance can be enhanced by transverse convection and self-circulation according to field synergy principle .

因此，对于温度场的计算，建议考虑块石路基中风的强迫对流作用。

It was suggested to consider the effect of natural wind on thermal field under embankment with block stones layer .

块石的粒径、孔隙率、通风能力直接影响块石路基的空气对流作用。

The diameter , porosity and ventilating ability of the block stones pile had important influences on air convection effects .

我们认为在岩浆房中曾经有结晶分异作用、岩浆液态化学扩散作用及岩浆对流作用。

We suggest that crystal fractionation process , chemical diffusion of liquid magma and their convection have occurred in the magma chamber .

影响韵律形成的因素很多，通常包括岩浆成分、对流作用、扩散作用、热梯度、氧逸度、温度和压力等。

These factors include magma composition , convection , diffusion , thermal gradient , oxygen fugacity , temperature , pressure , the shape of magma chamber etc.

已经侵入到混凝土内一定深度处的氯离子由于对流作用，可能在长期的持续干燥下向表面移动。

Chloride , which had penetrated deep into the concrete , may move closer to the surface by convection during a long lasting drying period . 2 .

在电磁搅拌引起的强烈混和对流作用下，熔体的动态凝固过程不同于常规铸造时的静态凝固过程。

Under vigorous convection caused by intense electromagnetic stirring , the dynamic solidification process of melt is quite different from that of conventional casting which is relatively static .

数值计算结果证实这主要是熔池中熔体在表面张力梯度下引起的强制对流作用的结果。

This is the result of forced convection on the fused liquid of the molten pool induced by surface tension gradient , which has been proved by numerical simulation .

较低的封装分率下，组件壳程对流作用明显，有利于减少死区，充分利用膜接触面积。

Under low packing density , convection is significant in shell-side flow , which is preferable for the reduction of dead zone area and the higher utilization of contacting area .

较严密地推导了能够描述含水层热量运移中自然热对流作用的水流方程和热量运移方程，并在此基础上建立了一个三维非线性模型。

In this paper , the flow and thermal transport equations for the accurate description of natural thermal advection in the process of heat transfer in aquifers are manipulated and presented .

结果表明：低纬积云对流作用加强了东北季风和东北信风，但阻滞了热带辐合带进一步南移。

Numerical experiments show that : in low latitude , the cumulus convection effects can intensify the north-east monsoon wind and north-east trade wind , keep ITCZ from transferring southward further .

针对以溴化锂水溶液为工质的水平管吸收器，考虑湿润比和横向对流作用，建立了描述水平管外表面的降膜流动吸收传热传质耦合过程的数学模型。

A numerical simulation model of falling film absorption over horizontal tubes in absorber with LiBr water solution as the working medium was established in consideration of wet ratio and transverse convection .

在对块石路基内的块石层计算中采用了“块石”与“多孔介质”模型。块石的粒径、孔隙率、通风能力直接影响块石路基的空气对流作用。

Two models , the ballast model and porous model , are applied in the simulation . The diameter , porosity and ventilating ability of the block stones pile had important influences on air convection effects .

随着雷诺数的增大，对流作用得到加强，分合式通道的混合效果与直通道相比提高更大，但与蛇形通道相差无几。

The mixing efficiency is also much better than that of in the straight channel , but no obvious difference from that of in serpentine microchannel when the Reynolds number being bigger , because the convection dominates the flow .

提高相变材料的液相率可以增大自然对流作用，缩短熔化时间。

Improve the rate of liquid phase change materials can increase the role of natural convection and shorten the melting time . ( 3 ) The heat transfer fluid temperature is the main factor to affect the phase change thermal storage process .

融化过程自然对流影响作用的实验研究

Experimental investigation on the effect of natural convection on melting process

基于导热和对流联合作用原理中温管道流量测量研究

An study on the flow measurement of medium-temperature pipe based on theory of heat transfer