1) transport equations
运输方程
1.
In the first one,our aim is to prove the existence of a flow of measurable maps associated to a vector field belonging to a Sobolev space;to this end,we discuss the link with transport equations and continuity equations.
在第一部分中,我们的目的是证明由属于Sobolev空间的向量场生成的可测映射流的存在性,为此我们讨论常微与运输方程和连续方程的联系。
2) transport equation
输运方程
1.
This paper systematically studies the finite-element method of solving the Galerkin variation problem of the transport equation in well-logging condition and developed a finite-element mesh program which can be used in 2-dimension and 3-dimension well-logging domain.
在测井条件下,系统研究了输运方程的Galerkin变分问题的有限元求解过程。
2.
The transport equation of air age is derived based on tracer gas technique.
为了替代示踪气体方法评价室内空气品质和通风有效性，在示踪气体研究方法的基础上，推导出空气年龄的输运方程，用计算流体力学的方法对该方程进行了求解。
3.
In the frame of multigroup P_1 approximation the neutron transport equation is soluted by using finite-element method and the two-dimentional finite-element code FEMLOG is devel- oped for the numerical simulation of neutron well-logging.
用有限元方法求解多群 P_1近似中子输运方程,编制了二维有限元程序 FEMLOG,并对中子测井问题进行了数值计算。
3) PDF transport equation
PDF输运方程
4) Padéapproximants
Boltzmann输运方程
5) PDF transport equation method
PDF输运方程方法
6) convey-diffuse equation
对流输运方程
1.
In order to reduce the numerical diffusion error of the convey-diffuse equation,the concept of concentration on cross section is introduced to calculate the mean concentration of river sections,and a new finite control volume method is put forward based on the incomplete mixing pattern.
针对如何减小数值求解对流输运方程耗散误差的问题,引进断面计算浓度的概念来计算河段平均浓度,提出了非充分掺混模式的有限控制体积法离散对流输运方程的新算法,据此构建了模拟流域内的水源组成以及不同水源在流域内的时空变化情况的流域来水组成模型。
补充资料：运输
使用一定的工具和设备，把旅客或货物从一地运送到另一地的活动。有铁路运输、公路运输、水路运输、航空运输、管道运输等方式。对于发展经济，扩大地区和国际间合作交流，改善人民物质文化生活具有重要意义。
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参考词条