提出了一种管壳式换热器壳程单相流动和传热的三维模拟方法。
A three dimensional thermal-hydraulic model is developed for the analysis of fluid flow and heat transfer in shell-and-tube heat exchanger.
具原因在于公式推导中假定地层是均质的、流体做单相流动等。
The reason is that the derived equation assumes the formation is homogeneous and fluid flow is single phase.
其结果是两相流管道的压降比单相流动有极大的增加，而且液体在管道内堆积。
The result is that the pressure drop is increased rather dramatically over single-phase flow and that the liquid tends to stack up in the pipe.
水在微尺度槽道中单相流动和换热的研究，是通过对其流动阻力和换热强度等的实验进行的。
Experiments to investigate the heat transfer and fluid dynamic characteristics of water flowing through micro channels were conducted.
目前，试井分析方法仅限于地层中的单相流动，而在油气田开发中后期，试井往往涉及地层中的多相渗流。
The present well test analysis methods are only suitable to single-phase flow in reservoir. In fact, multi-phase flow will occur after a certain long time reservoir fluid production.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
采用非平衡态吸附模型，研究单相煤层气在煤体和割理中的流动规律。
The single phase flow rule of coalbed gas in coal and cleats may be studied by use of non equilibrium adsorption model.
本文对开井后单相气体瞬变流动的规律进行研究。
This paper studies the transient flow rule of single phase gas after the well is opened.
本文把单相流体在三重介质中的流动视为一更新过程，从而用新方法建立了数学模型。
The monophase fluid flow in triple media is considered as Markovian renewal process, and a mathematical model is set up with a new method in this paper.
在考虑煤层渗透率应力敏感性的基础上，采用非平衡态吸附模型，研究单相煤层气在煤体和割理中的流动规律。
Based on consideration of stress sensitivity of coal seam permeability, the single-phase flow rule of coal-bed gas in coal and cleats is studied by using non-equilibrium adsorption model.
本文主要针对微流体在硅基微通道内的单相和汽液两相流动与传热进行了系统的实验研究。
In this study, systematic experimental investigation was carried out on single-phase fluid flow and vapor-liquid two-phase flow heat transfer in silicon microchannels.
采用盐水示踪、微机采样来研究垂直管道浸取器直管内单相流的流动模型。
The flow model of single phase flow in the straight tube of the vertical tubular leacher was studied by using NaCl solution tracing and microcomputer sampling.
针对摇摆工况下单相自然循环流动的特点进行实验研究。
In the view of the characteristics of the single-phase natural circulation flow under rolling motion, the research was conducted experimentally.
针对缸盖水腔内的冷却水流动沸腾传热计算，本文介绍了两种单相流沸腾模型。
Two boiling flow models are introduced for the calculation of boiling heat transfer in cylinder head cooling gallery.
结果表明：气液二相流音速比单相液体或空气介质低得多，流动机构对音速变化有显著影响。
The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium.
本文完成了液单相、两相热平衡实验和阻力特性实验，研究了制冷剂在管内流动的压降；
In this thesis, experimental study on single-phase balance heat transfer, two-phase balance heat transfer, and pressure drop was finished.
在恒定热流密度条件下，对单相流体分别强制轴向层流流经多孔泡沫金属换热器管内、外的流动和对流传热的均匀性进行了分析。
The distributions of velocity and temperature of fluid inside the tube fitted with the porous metal foam were more uniform than that of the blank tube.
与实验比较，两相流动状态比单相气体流动状态更接近于实际情况。
Compared experiment, That is better than one-gas flow about gas-particle.
与实验比较，两相流动状态比单相气体流动状态更接近于实际情况。
Compared experiment, That is better than one-gas flow about gas-particle.
应用推荐