基于自激振荡流的气力输送颗粒运动特性

本书以水平管稀相气力输送系统为研究对象，将自激振荡流（由软翅自由振荡产生）应用于气力输送系统加速区，结合流体动力学、弹性力学和摩擦学相关理论，开展基于自激振荡的稀相低速气力输送粒子运动机理研究，进而提出一种安全高效的节能方法，为气力输送行业提供理论基础。本书针对科研院所的硕、博研究生，以及气力输送行业的企业研发部门。

1.1 PneumaticConveying
1.1.1 Characteristics of pneumatic conveying
1.1.2 Applicatiofields
1.1.3 Systemponents
1.1.4 Systemrequirements
1.1.5 Mode ofpneumatic conveying
1.1.6 Basicpneumatic conveying systems
1.1.7 Systemselectioconsiderations
1.1.8 Materialproperty influences
1.1.9 Conveyingcapability
1.2 Review ofPneumatic Conveying
1.2.1 Reviewoenergy-saving techniques
1.2.2 Reviewocharacteristics of particle motion
1.3 Background of thisBook
1.4 The Purpose ofthis Book
2 Experimental Apparatus and Procedure
2.1 Experimental Apparatus
2.2 Conveying Materials
2.3 Soft Fins
3 A Horizontal Energy-Saving PneumaticConveying System with Horizontally Mounted Soft Fins
3.1 The Purpose ofthis Chapter
3.2 Frequency Featuresof Fin's Oscillation
3.3 Pressure Drop
3.3.1 Particlesofdp=2.3mm
3.3.2 Particlesofdp=3.3ram
3.4 Minimum ConveyingVelocity
3.5 Power ConsumptioCoefficient
3.5.1 Particlesofdp=2.3ram
3.5.2 Particlesof dp=3.3mm
3.6 Particle FlowPattern
3.7 AdditionalPressure Drop Coefficient
3.7.1 Particlesof dp=2.3mm
3.7.2 Particlesof dp=3.3mm
3.8 Summary
4 A Horizontal Energy-Saving PneumaticConveying System with Vertically Mounted Soft Fins
4.1 The Purpose ofthis Chapter
4.2 Frequency Featuresof Fin's Oscillation
4.3 Pressure Drop
4.3.1 Particlesof dp=2.3mm
4.3.2 Particlesof dp=3.3mm
4.4 The MinimumConveying Velocity
4.5 PowerConsumptioCoefficient
4.5.1 Particlesof dp=2.3mm
4.5.2 Particlesof dp=3.3mm
4.6 Particle FlowPattern
4.7 AdditionalPressure Drop Coefficient
4.7.1 Particlesof dp=2.3mm
4.7.2 Particlesof dp=3.3mm
4.8 Summary

5 Characteristics of Particle MotioiaHorizontal Pneumatic Conveying with Horizontally Mounted Soft Fins
5.1 High-Speed PIVImaging Set-Up and Procedure
5.2 Measurement Methodof Particle Concentration
5.3 Profiles ofParticLe Concentration
5.3.1 Particleconcentratioof the particles dp=2.3mm
5.3.2 Particleconcentratioof the particles dp=3.3mm
5.4 Profiles ofParticle Velocity
5.4.1 Axialponent of particle velocity
5.4.2 Verticalponent of particle velocity
5.5 ParticleFluctuatioVelocity
5.5.1 Spectralcharacteristics of particle fluctuating velocity
5.5.2 Auto-correlatiocoefficients of particle fluctuatiovelocity
5.5.3 Two-pointfluctuatiovelocity correlation
5.5.4 Intensities of particle fluctuatiovelocity
5.5.5 Skewnessfactor of particle fluctuatiovelocity
5.5.6 Probabilitydensity functioof particle fluctuatiovelocity
5.6 Summary
6 Characteristics of Particle MotioiaHorizontal Pneumatic Conveying with Vertically Mounted Soft Fins
6.1 Profiles ofParticle Concentration
6.1.1 Particleconcentratioof the particles dp=2.3mm
6.1.2 Particleconcentratioof the particles dp=3.3mm
6.2 Profiles ofTime-Averaged Particle Velocity
6.2.1 Axialponent of time-averaged particle velocity
6.2.2 Verticalponent of time-averaged particle velocity
6.3 ParticleFluctuatioVelocity
6.3.1 Spectralcharacteristics of particle fluctuating velocity
6.3.2 Auto-correlatiocoefficients of particle fluctuatiovelocity
6.3.3 Two-pointfluctuatiovelocity correlation
6.3.4 Intensities of particle fluctuatiovelocity
6.4 Summary
7 Conclusions
References
Index