And we used a vector field that represents the flow of whatever the substance is whose diffusion we are studying.
我们用向量场表示物质的扩散，而其扩散就是我们要研究的内容。
It is shown that the pseudo diffusion greatly influences the calculated results of the flow field in a tangential firing furnace.
结果表明，伪扩散现象对四角炉膛流场的数值计算有很大的影响；
Firstly We investigated the flow field and temperature field of diffusion fuel.
首先研究了扩散燃烧时的流场和温度场。
Results of this study on features of flow field and atmospheric diffusion parameters are described in the paper.
本文介绍了用平衡汽球探测法在山区工业基地研究大气边界层流场特征和大气扩散规律的结果。
The relative position between the diffusion blade and the volute tongue has influence on the distribution of diffuser flow field and the position is regulated suitably to reduce the hydraulic loss.
扩压叶片与隔舌相对位置对扩散段流场的分布有影响，适当调整可以减小水力损失。
Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
The diffusion theory of vortex is also used in the model to set up the diffusion equation of gas, and the barrier caused by the variation of flow patterns inside the flow field is resolved.
在模型中引入涡扩散理论建立了扩散方程，解决了气液两相数值模拟中流型变化带来的复杂问题。
To dispose of the flow field of mesoscale cities, in order to make the diffusion model be used to exactly calculate the concentration distribution of the pollutants;
②对中尺度城市的流场进行处理，使之用于扩散模型后更能准确反应污染物的浓度分布；
The experiment quantitatively verifies the existence of convection flows of gas induced by the gradient magnetic field, furthermore the convection flow promotes the combustion in diffusion flames.
实验定量地验证了梯度磁场可以诱导气体对流的发生，从而进一步推进扩散火焰燃烧反应。
A Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
A Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
应用推荐