Based on the model to calculate mixture loss, a new calculation model of pressure drop for stratified flow in horizontal wellbore has been developed by applying the momentum conservation equation.
在混合损失计算模型的基础上，应用动量守恒原理推导出了新的水平井筒气液两相分层流型压降计算模型。
This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations.
本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
Through nonlinear fitting on clastic coal core gas desorption laws in Jiedong mine, compared each desorption model of the loss to the loss of volume by calculation methods.
通过对街洞矿区碎屑状煤芯瓦斯解吸规律的非线性拟合，对各解吸模式的损失量与用计算方法所求得的损失量进行了比较。
In this paper, the reactance silencer with axis symmetry is analyzed in finite element method so as to establish a mathematic model for the programming of calculation of the trans-mission loss.
通过对轴对称抗式消声器进行有限元分析，建立其数学模型，对传递损失编制程序计算。
Deep IGBT selection and power loss calculation, power module thermal model knowledge.
较深的IGBT选型及功耗计算知识，功率模块热模型创建。
Based on the calculation model of various pressure losses in a positive pneumatic conveying system, a calculation model of total pressure loss in two - phase flow is established in the paper.
本文以气力压运系统各项压损计算模型为基础，提出了两相流总压损的计算模型，通过计算机对总压损计算模型进行了八次工况的计算。
The loss factors in liquid rocket turbine are analysed in detail and a related mathematical model and calculation method is proposed.
分析了液体火箭发动机中所用涡轮的各种损失因素，并建立了相应的数学模型，给出了计算方法。
The model was made up of inner steam temperature drop equations, the steam pipe laying different ways of unit length heat loss equations, total heat resistance calculation equations.
模型由管内蒸汽温降方程、不同敷设方式蒸汽管道的单位长度散热损失方程、总传热热阻计算方程组成。
The characteristic curve of IGBT is fitted with polynomial to establish its loss model, based on which its loss calculation method is proposed.
采用多项式方法拟合IGBT器件手册提供的特性曲线，建立多项式损耗模型，给出了一种基于曲线拟合理论计算损耗的方法。
Using the model and calculation formula, one can evaluate the system energy consumption and find out the energy loss factors.
该能量转换分析模型和计算公式可判断系统的用能水平，寻找系统的用能薄弱环节。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
计算表明：考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量，当净压力较高时，二者可相差10倍之多。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
计算表明：考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量，当净压力较高时，二者可相差10倍之多。
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