压实流盆地被认为是具有离心流模式的地下水流系统。
Compaction driven flow basins are believed as existing typical centrifugal flow regime of underground water.
故在有旋流存在的管壳式换热器中,离心浮力对换热器传热性能的影响不可忽视。
Therefore, the influence of centrifugal buoyancy on the heat transfer performance of tube-shell heat exchanger with swirling flow was not negligible.
同时,针对旋流泵的性能曲线和汽蚀问题与同比转数普通离心泵进行了对比分析。
Comparing of performance curves and cavitation property with common centrifugal pump of same specific speed was presented in this paper.
当热阻较大一侧有旋流存在时,离心浮力对换热器传热性能的影响更为明显。
Furthermore, the influence of centrifugal buoyancy on the performance of heat transfer was more distinct in the case of swirling flow existing in the side of larger thermal resistance.
本试验综合采用超滤法、缓冲盐法、流加碱中和法、离心法浓缩菌体,优选工艺路线,为规模化生产奠定基础。
This thesis use the methods of ultra-filtration, phosphate buffer, flowing-alkaline, centrifugal to concentrate the Yoghurt starter, and optimize the processing techniques of it.
由流体径向温度梯度引起的离心浮力对旋流强化传热效果有重要影响。
Centrifugal buoyancy arising from radial temperature gradient of fluid has a great influence on the enhanced heat transfer performance of swirling flow.
本文介绍了离心泵在纯液相流瞬变工况的性能研究的一些进展。
This paper presents some advances in the study of centrifugal pump performance under pure liquid phase transient flow conditions.
介绍了利用激光多普勒测速仪(LDV)测量离心泵蜗壳流道内部速度场时的速度与流量两种校核方法。
Two kinds of methods for verifying the precision of LDV when used in measuring velocity fields of the centrifugal volute are introduced.
并揭示了离心式渣浆泵和旋流泵性能上的一些特点。
Some characteristics of performance characters of centrifugal slurry pump and vortex pump were also discovered at the same time.
为了研究离心不稳定对线性增长率的影响,本研究中基本流的周向速度可以是离心稳定的,也可以是离心不稳定的。
To investigate the roles of centrifugal instability on the linear growth rate of the flows, the azimuthal velocity of the basic flow is either centrifugally stable or unstable.
基于低比速离心泵is 50 - 32 - 160模型,对有、无分流叶片的设计方案全流场进行了数值模拟和对比分析。
Based on the low-specific speed centrifugal pump model of IS 50-32-160, two impellers are designed with and without splitter blades.
为进行离心泵叶轮的三元设计,用有限元方法解决了离心泵叶轮三元流场的计算问题。
The finite element method is used for the three-dimensional flow field calculation in designing centrifugal pump impellers.
本文对压缩理想气体和实际气体的离心式叶轮作了流场分析。
This paper presented the flow field analysis in centrifugal impellers compressing perfect and real gases respectively.
本文目的是研究离心力场及离心力场和重力场同时存在时热驱动流的一些现象和规律。
The primary objective of the present work is to reveal some physical phenoma about thermal drive under centrifugal field, or combined gravitational and centrifugal fields.
离心式固液两相流泵叶片的边界层的理论分析,可以为分析流体在叶片表面沿程阻力提供基础,进一步也可以为确定叶片型线提供理论依据。
The theoretical analysis of boundary layer in vane of centrifugal two-phase flow pump may provide a basis for flow drag in vane surface and a theoretical evidence to determine vane curve.
概要介绍混流式水轮机转轮计算机设计的水力设计方法,其一般原理同样适用于离心泵和混流泵叶轮的设计。
A brief presentation on computer aided hydraulic design of Francis Turbine runners is given, the general principle of which are also applicable to centrifugal and mixed flow pump runners.
文章介绍一种用于从河底吸取泥砂并且有自吸排气的离心式多相流泵的结构及水力设计。
This paper introduces the structure and hydraulic design of the multiphase flow centrifugal pump, which draught sands from the riverbed and discharge the air of the suction pipe.
研究结果表明:通过优化有效降低了因二次流漩涡、风机蜗舌结构、尾流-射流和正冲角等造成的能量损失,提高了离心通风机性能。
The results show that the performance of optimized fan is improved by lowering the energy loss which caused by the secondary flow vortex, the volute tongue, the wake-jet and the angle of attack.
目前离心式压缩机叶片数目的确定主要根据经验公式,同一叶轮取不同数目的叶片对叶轮内部流场的影响缺乏定量的分析。
Currently, determination of compressor blade number is mostly base on experimental formula. The effect of Impeller with different blade number on flow field lacks of quantitative analysis.
离心泵和混流泵常见的压水室是螺旋形的,称为涡壳。
Centrifugal and mixed flow pumps pressurized water chamber is a common spiral-shaped, called the volute.
高速离心泵内的三维定常湍流流动计算结果不仅为诱导轮内部流场诊断提供数据,还指出了该泵中存在的部件设计问题。
The calculated results of three-dimensional steady flow not only offer the based dataset for flow diagnoses in the pump, but also indicate the design problem in some parts of the pump as well.
用源汇模拟同位素分离气体离心机流场的供取料驱动和机械驱动是离心机流场计算中的方法之一。
The sources and sinks are used to simulate the mechanical drives and the drives of the feed and withdrawals in the simulation of the flow field of a gas centrifuge for isotope separation.
计算结果表明所选的湍流模型能够很好的反映离心风机气固两相流的情况。
The computational predictions of the centrifugal fan flow indicated that the turbulence model under-predicted gas-solid two-phase flows.
研究离心中间包离心室旋流发生的方法。
The generation of swirling flow in a centrifugal tundish is studied.
对一离心压缩机小流量级扩压器内部的三维粘性流场进行了数值研究。
Numerical research of the three dimensional viscous flow field in diffuser with small flow rate stage of centrifugal compressor is carried out.
提出采用可控减速法设计离心风机两元叶片,即通过三维黏性流场计算,采用正交试验设计方法,以确定流道内平均速度的减速规律和叶片型线。
In the present method, the orthogonal design and the three-dimensional viscous flow field computation were used to determine the optimum controlled deceleration flow in impellers and the blade curves.
通过对离心压气机与轮盘空腔耦合流场的计算分析,得到了轮盘空腔流动的基本流场结构和动力特性。
The basic flow field structure and aerodynamic features of the impeller backside cavity are presented for the coupled computations of a centrifugal compressor and its impeller backside cavity.
通过对离心压气机与轮盘空腔耦合流场的计算分析,得到了轮盘空腔流动的基本流场结构和动力特性。
The basic flow field structure and aerodynamic features of the impeller backside cavity are presented for the coupled computations of a centrifugal compressor and its impeller backside cavity.
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