A Design Study of an Air-twist Nozzle by Analysis of Fluid Flow

Title
A Design Study of an Air-twist Nozzle by Analysis of Fluid Flow
Author(s)
송동주막슈다쥬래바전두환
Keywords
SIMULATION
Issue Date
201004
Publisher
SAGE PUBLICATIONS LTD
Citation
TEXTILE RESEARCH JOURNAL, v.80, no.15, pp.1616 - 1623
Abstract
The efficiency of the air-twist nozzle has a direct effect on the uniform tension of spandex yarn during the winding and unwinding process. The different geometries of the air-twist nozzle were studied as a reference. Compressed air coming out of the air orifice flows through the wall of the yarn channel in a twisting motion. The purpose of this research is to develop an air-twist nozzle geometry which has well-twisted motion, with reasonable vorticity strength and velocity. The paper presents investigations of the effects of the inlet pressure and the yarn channel shape of the air-twist nozzle. The Ansys CFX was used to perform steady simulations of jet flow inside the air-twist nozzles. Results of computational simulations for the two most promising cases were confirmed by experimental tests. The twist and flow patterns, specifically vorticity and velocity inside the air twist nozzles, are discussed in this paper. As a result of this research, an air-twist nozzle of improved design is now being produced for commercial use.
URI
http://hdl.handle.net/YU.REPOSITORY/22653http://dx.doi.org/10.1177/0040517510361798
ISSN
0040-5175
Appears in Collections:
공과대학 > 기계공학부 > Articles
공과대학 > 융합섬유공학과 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE