Controlling Air Vortex in Air-Vortex Spinning by Zeng-He Model

Liu, Y.; Xu, Lianghao

doi:10.1515/ijnsns.2006.7.4.389

Cited by 20 publications

(21 citation statements)

References 5 publications

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“…With the development of computer-aided technology, computational fluid dynamics (CFD) have provided an important means of predicting the flow field under different design and operating conditions. In recent years, computational fluid dynamic approaches have been used to investigate the airflow characteristics in the vortex spinning nozzle [30][31][32].…”

Section: Numerical Simulation Studies Concerning Vortex Spinning Theorymentioning

confidence: 99%

“…Liu and Xu [31] studied a simple analytical formulation for the forces that determine the strength of the air vortex twist acting on the yarns during air-vortex spinning as a function of nozzle pressure, flow rate, the radius of the main nozzle in the horizontal plane, nozzle pressure, jet orifice angle, the number of the orifices, jet orifice angle, diameter of the jet orifice, and from the top of the twisting chamber to the spindle. They used FLUENT to simulate the flow fields of air vortex spinning machine.…”

Section: Numerical Simulation Studies Concerning Vortex Spinning Theorymentioning

confidence: 99%

“…The researchers focus on the yarn formation area. Considering the distance from the top of the twisting chamber to the spindle (h) and ignoring the energy loss, the momentum formulation in the horizontal direction was calculated [31].…”

Section: Numerical Simulation Studies Concerning Vortex Spinning Theorymentioning

confidence: 99%

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Vortex Spinning System and Vortex Yarn Structure

Günaydin¹,

Soydan²

2017

Vortex Structures in Fluid Dynamic Problems

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Studying the yarn formation with the swirling air concept arouse of interest of the researchers for a long time because it appears to be easy to understand as a spinning principle. These kinds of systems are known as the vortex yarn spinning systems. The airjet spinning methods have been developed since it is possible to eliminate the movable elements as the spindle and the traveler in ring spinning or the centrifuge in rotor spinning. The success of Murata vortex spinning (MVS) system which is the newest system after all studies of air-jet systems has been much acceptable especially for the spinning ability of 100% cotton in high speeds (500 m/min) and the yarn structure resembling ring yarn structure rather than rotor yarns. This study summarizes the historical background of vortex spinning, the spinning principle and the structure of the yarn spun on this system, as well as the factors influencing the yarn quality and finally the developments in vortex spinning technology.

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Section: Numerical Simulation Studies Concerning Vortex Spinning Theorymentioning

confidence: 99%

Section: Numerical Simulation Studies Concerning Vortex Spinning Theorymentioning

confidence: 99%

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Vortex Spinning System and Vortex Yarn Structure

Günaydin¹,

Soydan²

2017

Vortex Structures in Fluid Dynamic Problems

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“…Compared with air-jet spinning [1][2][3] or air-vortex spinning [4], Sirospun yarn spinning, which has now been widely used in the worsted industry, has many merits: the strands are texturized to improve the bulk of the resultant yarns, which have been demonstrated to possess more desirable properties. Sirospun yarns are stronger, and the twisting operation binds the surface fibres into the yarn structure so that it is smoother and more resistant to abrasion during weaving.…”

Section: Introductionmentioning

confidence: 99%

Resonance in Sirospun yarn spinning using a variational iteration method

Zhang

2007

Computers & Mathematics with Applications

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“…Rotor spinning has obvious advantages over ring spinning [l] and air-vortex spinning [2,3] in its high yarn output rate and low production cost. The main disadvantage is the relatively low breaking strength.…”

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confidence: 99%