有旋流

用均匀来流和线性分布的非均匀来流验证了该有旋流特征线法精度，得出特征线法相对误差随初始区点数增加下降的结论。

The precision of rotational flow characteristic line method is validated availing the uniform incoming flow and the linear distribution non-uniform incoming flow , which indicates that the relative error of the characteristic line method declines as the increase of point numbers in initiation area .

有旋流燃烧器的流场研究

A Study on Flow Field with Swirling in Combustion Chamber

叶轮机械中有旋流准三元设计和全三元分析的联接解

Quasi three-dimensional design and full threedimensional analysis calculations in turbomachines

预报了有旋流和无旋流下燃烧器内的流场分布；

The model predicted the distribution of flow field with swirl flow and without swirl .

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。

Numerical simulation of heat transfer enhancement by strip-coil-baffles in tube-bundle for a tube-shell heat exchanger ;

该发动机主体结构为一内置有旋流燃烧室的高速旋转无叶无塞内燃转子，能融压气、燃烧和排气做功于一体。

The engines main body structure is an internal-combustion rotor , which has no blade and no piston but has an internal revolved stream combustor .

给出了有旋流和无旋流下燃烧器内的流场分布，并讨论了旋流强度对稳定火焰和燃气混合的影响；

The results not only give the distribution of fluid velocity with or without swirl flow , but also discuss the effects of swirl strength on the stabilized flame and premixed gas .

建立了二维定常有旋流动正、反命题的赝势-涡势函数变分原理及引入映象平面，导出了赝势函数在映象平面的方程；

The Variational Principles for 2-D compressible rotational flow using pseudo-potential model encompassing pseudo-potential function and vorticity-potential function are established , and the basic aerodynamic equations in terms of the pseudo-potential function are derived in image-plane ;

但是旋流器的自动控制历来是一个比较困难的问题，主要原因是分级过程比较复杂，影响分级效果的因素较多，主要影响因素有旋流器的结构参数、操作参数、物性参数。

But hydrocyclone automation always has been a headachy problem whose main cause is that classification course is very complex , and there are many factors of influence classification performance , which can be divided into hydrocyclone structure parameters , operation parameters , physical parameters .

增大扩压器出口面积和头部与扩压器间距有利于旋流器之间流量分配均匀。

With the increasing area of inlet of the diffuser and the growing distance between the dome and the diffuser , the distribution of the flow is more uniform .

本文为RST内两相流场的数值模拟提供了有效的方法，模拟结果有助于旋流板塔的结构优化和放大设计。

The research carried out in this work provided an effective method for the simulation of two phase flow field in RST . The results are helpful to the structural optimization and large-scale designing .

旋流的形式主要有衰减性旋流和非衰减性旋流两种。

The type of swirl-flow mainly includes decaying swirl flow and non-decaying swirl flow .

离心力强度是影有充气水力旋流器分选性能的一个关键操作变量。

Centrifugal field strength is a key operation variable in the air-sparged hydrocyclone separation .

提高旋流器进口油滴的平均粒径，改进旋流器的锥段结构，选择合适的入口流量都有利于提高旋流器的分离效率。

When inlet flowrates exceed a certain value , the mean oil droplet size will decrease with the inlet flowrate increasing .

目前适用于油水分离的旋流分离设备有静态水力旋流器和动态水力旋流器两种。

At present , there are two kinds of oil / water separation devices , which are suitable for the separation : static hydrocyclone and dynamic hydrocyclone .

有射流冲击、旋流和气膜出流的梯形通道内流动特性的研究

Investigation of Flow Characteristics in Trapezoid Channel with Jet / Swirl / Film Flows

表明适宜的操作条件有利于提高水力旋流器的分离效率。

The study shows that suitable operation conditions can improve the separation efficiency of a hydrocyclone .