介绍了采用燃气管网节点法水力计算的数学模型，运用线性化法进行水力计算。
Mathematical model of gas networks hydraulic calculation by node method is introduced, and hydraulic calculation is done by linear method.
根据优化原则，建立了环状给水管网流量优化分配的数学模型。
Based on optimal principle, a new mathematical model for flow distribution of looped network was put forward.
利用流体网络及网络图论的有关定理定律，建立供热管网水力工况的数学模型。
The paper also establishes mathematical model for the operating condition of the pipe network of heating with reference to relevant theorems and laws of fluid network and network graph theory.
建立了环状管网水力工况的数学模型，给出限额供热的压头校核公式。
The mathematical model of hydraulic regime of ring-shaped heat-supply network is established, and the pressure head check formula for quota heating is given.
建立了供热管网直埋、地沟敷设管道的二维数学模型，通过边界离散方法进行了求解。
Develops the two dimensional mathematical models for direct-buried pipes and in-duct pipes and solves them using the boundary discretization method.
通过建立基本单元和注水管网的数学模型，来描述注水系统的基本特征。
The paper sets up mathematical models of units and pipeline network that can be used to describe basic features of water flooding system.
根据排水管网设计的实际需要，以可靠性分析理论为依据，提出可以用于排水管网可靠性计算的基础数学模型。
Based on reliability theory, a basic maths model of calculating the reliability of drainage pipe line is recommended for factual need of drainage pipe line design.
为了提高对某热力厂室内蒸汽管网的监测和管理，以火用分析方法为基础，建立蒸汽管网的数学模型。
Aimed at effectively monitoring and managing indoor steam pipe network in thermal plant, mathematic model of steam pipe was constructed which based on exergy analysis method.
针对大型、复杂油田供水管网的流体网络系统，建立了油田供水管网系统的仿真数学模型，给出了一种子系统自动划分的算法。
According to the large and complicated float net of oil flooding system, found math model of oil water flooding system and brought forward the algorithm of subsystem auto-partition.
采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
A pipe hydraulic resistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.
采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
A pipe hydraulic resistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.
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