螺旋流

立轴漩涡多圈螺旋流速度分布的研究

Velocity distribution of vertical vortex with multi - circle spiral flow

涡管螺旋流排沙技术及其应用

Sediment escaping technique by vortex tube spiral flow and its application

环空中螺旋流数值模拟及PIV实验研究

PIV Experimental Research and Numerical Simulation on Annular Helical Flow

圆管中螺旋流数值模拟及二维PIV实验研究

Numerical Simulation and PIV Experimental Research of Two-dimensional on Power-Law Fluid in Circular Pipe

Bingham流体在定向井眼中层流螺旋流压降公式

Pressure drop formula of laminar helical flow of Bingham fluid in directional hole

研究Robertson－Stiff流体环空螺旋流具有工程意义。

Abstract It is significant to study the helical flow of Robertson-Stiff fluid in an annulus .

定向井偏心环空中Bingham流体层流螺旋流流动特性

Flow characteristics of the laminar helical flow of Bingham fluid in directional hole eccentric annuli

幂律流体偏心环空螺旋流轴向速度分布规律的PIV实验研究

PIV experimental study on the axial velocity 's distributing law of power law fluid 's helical flow in eccentric annulus

利用Newton流体在内外管同时旋转的偏心环空中螺旋流的流函数和轴向速度函数，推导出该流动条件下的稳定性参数H的解析表达式；

The expression of stability parameter H is developed based on the stream function and axial velocity function of Newton helical flow in eccentric annuli with the inner and outer cylinders rotating simultaneously in this paper .

采用了数值计算中常用的GauSS一Seidel迭代法求解，得出圆管螺旋流在不同流量工况下的速度场和压强场。

The ordinary iterative method of Gauss-Seidel was induced . Finally , the velocity field and pressure field of different discharge was obtained .

螺旋流运动中水流质点的运动轨迹ds远大于旋流洞长度dx，等于延伸了旋流洞长度，加大了沿程阻力损失；

The movement track ds of water particle is further more than the length dx of eddy flow grotto , equal to extend the length of eddy flow grotto , increase the loss of resistance along its tracks ;

采用数学规划优化方法对N8160ZC柴油机新型螺旋流排气系统结构参数进行了优化设计；

The structural parameters of swirl flow exhaust system for Model N8160ZC diesel engine have been calculated by using the mathematical optimum method for optimum design .

实验结果表明：在大部分运行工况下，螺旋流排气系统对N8160ZC柴油机的整机性能有一定程度的改善，但在低速低负荷工况下较MPC排气系统稍差。

The results show that the engine has better performance by using swirl flow exhaust system than by using MPC system under the most running condition , but has worse performance at the low speed and load condition .

一类变截面管内轴对称螺旋流的衰减规律分析

The Decay of Swirling Flows in a Type of Cross-Section-Varying Pipes

常切力盘状螺旋流特性的试验与研究

Experimental Study on Characteristics of Pan Spiral-flow in Constant Shear Stress

宾汉流体环空螺旋流层流流场的研究

A study on helical flow of Bingham fluid in annular space

纯粘性流体环空螺旋流层流流场的理论分析

Theoretical analysis of helical flow of an annular mass of viscous fluid

幂律流体同心环空螺旋流数值模拟

Numerical modeling of the power-law fluid in a helical flow

压力缝隙螺旋流边壁切应力及压力分布

Wall shear stress and pressure distribution of spiral flow in pressure crevice

水平圆管中螺旋流的形成与衰减

Forming and Declining of the Spiral Flow in the Horizontal Circular Pipe

螺旋流的形成和排沙效果试验

Experimental Study on Development of Secondary Flow and Its Sediment Sluicing Effect

有界螺旋流的摩阻耗能试验研究

Test Research on Energy Dissipation of Bounded Spiral Flow Due to Friction

水平管螺旋流中均匀固粒的分布

Distribution of Uniform Grains in the Horizontal Pipe Spiral Flow

螺旋流排沙管泄流量计算方法

Method of calculation of flow discharge in scour tube with spiral current

一种强螺旋流现象的数值试验研究

Numerical studies on a sort of strongly swirling flows

光整加工中两相螺旋流流场的分析与比较

Comparison and Analysis of the Two-phase Spiral Flow Field

内加热式螺旋流流动沸腾传热研究

Flow Boiling Heat Transfer in Internal Heating Swirl-flow Thermosyphon

管内螺旋流的实验研究与分析

Experimental Study and Analysis of Spiral Flow in Pipes

螺旋流技术在水科学领域中的应用研究

Research on the Application of Swirling Flow Technology in the Water Science Field

幂律液体圆管螺旋流的解析解

Analytical solutions of the helical flow of a power law fluid in pipes