对流

And the rapid uplift of Tibetan Plateau, commenced around 8 Ma or 3 Ma, can be explained by the convective removal and replacement by hotter asthenosphere of the thickened lithosphere...

大陆岩石圈的增厚及热结构变化和对流剥离可能是青藏高原自9百万年前开始的夷平—快速隆升过程的主导控制因素。

The best models suggest that the topographic stress and the convergence forces of the adjacent plate are controlling factors on the active faults in Tibetan Plateau, and the drag force under the lithosphere caused by the convection of the asthenosphere material also plays an important role as the boundary condition of the model.

在考虑青藏高原地形附加重力作用和周边板块汇聚作用对现今大型断裂带运动特征控制作用的同时，岩石圈之下的橄榄岩软流圈至转换带物质对流对岩石圈的拖曳力也是必须考虑的底部边界条件。

By using asymptote model, the boiling heat transfer coefficient correlation is established.

对已有的管内流动沸腾的计算关联式进行分析，将沸腾段的流体沸腾换热分为对流换热和核态沸腾换热，对这两部分的沸腾关联建立了渐进模型，在该模型下给出了含空气的煤油在水平管内的沸腾换热系数计算关联式。

The simulative results showed that the total heating loads in solar house were 24.4 % less than those in the reference house of no auxiliary heat sources in the whole heating period in Shenyang when indoor air temperature was 18℃ in the houses with ideal auxiliary heat.The effects of operation,structures and performance parameter of the solar thermal storage wall were analyzed.

无内通风口式集热蓄热墙冬季空气间层是密闭的，发挥了重质墙体的蓄热作用和空气间层的热阻作用，依靠导热向室内传递热量；有内通风口式集热蓄热墙依靠空气间层与室内的对流换热和墙体的导热两种方式向室内传递热量。

Local discontinuous Galerkin method for convection-dominated diffusion problems with periodic boundary conditions is constructed. To deal with the derivative of second order, an auxiliary variable is introduced. The stability and error estimations are presented simultaneously.

针对具有周期性边界条件对流占优的扩散问题中的二阶导数，引入辅助变量，构造了局部间断Galerkin方法，并给出了方法的稳定性结果和误差估计式。

Bedroom door: Bedroom entrance door cannot is opposite continuously backstairs, prevent gas of its damp and hot and bedroom door to flow relatively; The door cannot is opposite between Wei Yu , diffuse because the ammonia of the hydrosphere after bath and toilet is extremely angry easily to bedchamber in, and the cloth that enrages for moisture absorption more again in bedchamber is tasted, will make an environment more damp; Bedroom door is unfavorable be opposite the door of storeroom, storeroom shelters evil people and practices much vital energy having mold, easily; Bedroom door also do not answer two two-phase are right, this calls " door knife evil spirit ".

卧室门：卧室大门不可直对厨房门，防止其湿热气与卧房门相对流；房门不可正对卫浴间，因为沐浴后的水气与厕所的氨气极易扩散至卧房中，而卧房中又多为吸湿气的布品，将令环境更为潮湿；卧房门不宜正对储藏室之门，储藏室多有霉气、易藏污纳垢；卧室门也不应两两相对，此谓"门刀煞"。

Douglas and Russell first presented the idea of characteristics in[13],in whichthe diffusion term is included in the derivative of characteristic direction of the solu-tion and the backward difference quotient along the time axis was replaced by it alongcharacteristic direction.

Douglas，Russell[13]最先提出了特征法的思想，其主要特点是将模型方程的对流项隐含在解沿特征方向的导数之中，以沿特征方向的向后差商逼近取代通常方法中沿时间方向的向后差商逼近。

Not only is the method applied in this paper better to solve the iteration between unsteady convection and conduction and the boundary condition problem, but also is a developmental application on forward and backward difference of windward scheme under unsteady condition.

不仅较好地解决了对流换热和导热的迭代求解和边界条件的处理问题，还将迎风格式的向前和向后差分发展性地应用于非稳态求解过程。

The control volume integration was applied to deduce the discrete expressions of the convection-diffusion equations. The staggered grid and SIMPLE algorithm were introduced to deal with coupling between pressure and velocity, and then the numerical computation expressions of such variables as fluid flow velocity and pressure were deduced. Using the backward difference method and incremental theory to discretize the governing equations for fields of chemical reaction, material structure and chemorheology, the numerical computation expressions of variables such as the monomer conversion, average molecular weight and fluid viscosity were constructed.

应用控制容积积分法导出了对流—扩散方程的离散表达式，引入交错网格技术与SIMPLE算法，实现了耦合的压力场与速度场的分离式求解，推导得到了流体的流动速度、压力等物理量的数值计算式；采用向后差分方法和增量方法，实现了化学反应场、材料结构场、化学流变场控制方程的离散，获得了反应转化率、聚合物平均相对分子质量、流体黏度等物理量的数值计算式。

Besides in beam sea the amplitude of heave motion is quite large, the amplitudes of rigid body motions of the floating structure are all small. However, the amplitude of flexible deformation is equivalent to or even larger than that of the rigid body motion.

除横浪时升沉运动的幅值较大外，浮体结构的刚体运动的幅值均较小，而结构的弹性变形位移幅值与刚体运动幅值相当，甚至超过了刚体运动，这就证明了对这种结构必须考虑弹性变形对流场的影响即必须采用水弹性理论进行计算。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。