对流

Thus, for an average-sized vent, advection could provide more than 30 kilograms of potential food per day.

这样对于一个普通大小的喷口来说，水平对流每天能提供30公斤以上的潜在食物。

The flow of chloride ions in the concrete of dry-wet cycling region is the combining of diffusion and advection.

在干湿交替区域混凝土中氯离子的输运属于在孔隙非饱和状态下离子浓度扩散和对流耦合的渗透。

The objective is achieved after the development of simulation model using one dimensional advection dispersion equation.

这样 ，一维对流—扩散水质方程的求解除就是实现本研究目的的关键。

Comparison of the results obtained by simulations and experiments shows that that the advection term has little effect on the results of injection process simulation and on those of free surface shapes in viscous flow injection.

对模拟和实验结果的比较表明，对流项对粘性流注射填充过程和的其中的自由表面形状的模拟结果影响可以忽略。

By the new method, the processing steps in the method of back and forth error compensation and correction during solving the advection item can be substantially reduced.

该方法简化了进退误差补偿修正方法对直接影响烟雾模拟实时性和真实性的对流项的求解步骤，从而减少计算时间。

The model was simplified comparing the real one for the purpose of describing the essential form of components, including the screw compressors, engine, air filter, oil-gas separator, fan, aftercooler for compressed air, instrument box, batteries and fuel tank, and also the effect of connection pipe and small size parts on flow field was ignored.

本文对空压装置内螺杆压缩机、发动机、空气过滤器、油气分离器、风扇、压缩空气后冷器、仪表柜、电池、燃油箱的真实模型进行了简化，使建立的几何模型能够反映部件最基本的形状，忽略连接管道和小尺寸部件对流场的影响。

Radiation between cell tube and air feed tube and heat transfer by convection and conduction was also included in this model.

在传热模型中，除考虑传导和对流换热外，也考虑了电池和空气进气管之间的辐射换热。

Radiation between cell tube and air feed tube and heat transfer by convection and conduction were also included in this model.

在传热模型中，除了考虑传导和对流换热外，也考虑了电池和空气进气管之间的辐射换热。

This equation can be deduced to an algebraic equation. Then, the boundary of water surface is fixed boundary condition.

在此基础上，并考虑了热对流和风吹掺混对水温分布的影响，利用FORTRAN语言编制了预测水库水温的微机程序。

But it demands the higher computational accuracy. Time-dependent LU-SGS method and close coupled full implicit finite volume scheme are used. The AUSMPW+ based on the three-order MUSCL difference scheme is used for the inviscid operator, and the maximum eigenvalue splitting method is used to convert matrix operation to algebraic operation in order to shorten the computing time.

运用时间相关的LU-SGS方法，采用强耦合的全隐式有限体积进行离散，其中无粘对流项采用三阶MUSCL型差分的AUSMPW+格式，并应用最大特征值分裂，将矩阵运算转化为代数运算，大大缩短了计算时间。

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％。