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Towards simulation of force and velocity fluctuations due to turbulence in the relay nozzle jet of an air jet loom

(2021) TEXTILE RESEARCH JOURNAL. 91(9-10). p.990-1008
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Abstract
This research was aimed at obtaining a first estimation of the effect of turbulent vortices present in the relay nozzle jets of an air jet loom on the weft. To this end a large eddy simulation (LES) model was set up and validated capable of simulating a highly underexpanded jet up to a point sufficiently far from the nozzle exit such that flow features at the weft location could be analyzed. The quality of the LES was evaluated based on several quality criteria as well as by comparing the results with experiments and data from the literature. The results show that for a free jet substantial velocity fluctuations are present at a representative yarn location. By inserting a rigid cylinder at this location, the corresponding force fluctuations on a smooth yarn were also obtained. The research shows that the unsteadiness in the jet is quite substantial, as are the corresponding force fluctuations. These fluctuations could have a profound impact on the yarn motion and should at least be considered when using numerical tools to evaluate the forces on or the motion of a yarn acted on by a relay nozzle jet.
Keywords
Chemical Engineering (miscellaneous), Polymers and Plastics, air jet loom, relay nozzle, computational fluid dynamics, large eddy simulation

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Citation

Please use this url to cite or link to this publication:

MLA
Delcour, Lucas, et al. “Towards Simulation of Force and Velocity Fluctuations Due to Turbulence in the Relay Nozzle Jet of an Air Jet Loom.” TEXTILE RESEARCH JOURNAL, vol. 91, no. 9–10, 2021, pp. 990–1008, doi:10.1177/0040517520968285.
APA
Delcour, L., Van Langenhove, L., & Degroote, J. (2021). Towards simulation of force and velocity fluctuations due to turbulence in the relay nozzle jet of an air jet loom. TEXTILE RESEARCH JOURNAL, 91(9–10), 990–1008. https://doi.org/10.1177/0040517520968285
Chicago author-date
Delcour, Lucas, Lieva Van Langenhove, and Joris Degroote. 2021. “Towards Simulation of Force and Velocity Fluctuations Due to Turbulence in the Relay Nozzle Jet of an Air Jet Loom.” TEXTILE RESEARCH JOURNAL 91 (9–10): 990–1008. https://doi.org/10.1177/0040517520968285.
Chicago author-date (all authors)
Delcour, Lucas, Lieva Van Langenhove, and Joris Degroote. 2021. “Towards Simulation of Force and Velocity Fluctuations Due to Turbulence in the Relay Nozzle Jet of an Air Jet Loom.” TEXTILE RESEARCH JOURNAL 91 (9–10): 990–1008. doi:10.1177/0040517520968285.
Vancouver
1.
Delcour L, Van Langenhove L, Degroote J. Towards simulation of force and velocity fluctuations due to turbulence in the relay nozzle jet of an air jet loom. TEXTILE RESEARCH JOURNAL. 2021;91(9–10):990–1008.
IEEE
[1]
L. Delcour, L. Van Langenhove, and J. Degroote, “Towards simulation of force and velocity fluctuations due to turbulence in the relay nozzle jet of an air jet loom,” TEXTILE RESEARCH JOURNAL, vol. 91, no. 9–10, pp. 990–1008, 2021.
@article{8685194,
  abstract     = {{This research was aimed at obtaining a first estimation of the effect of turbulent vortices present in the relay nozzle jets of an air jet loom on the weft. To this end a large eddy simulation (LES) model was set up and validated capable of simulating a highly underexpanded jet up to a point sufficiently far from the nozzle exit such that flow features at the weft location could be analyzed. The quality of the LES was evaluated based on several quality criteria as well as by comparing the results with experiments and data from the literature. The results show that for a free jet substantial velocity fluctuations are present at a representative yarn location. By inserting a rigid cylinder at this location, the corresponding force fluctuations on a smooth yarn were also obtained. The research shows that the unsteadiness in the jet is quite substantial, as are the corresponding force fluctuations. These fluctuations could have a profound impact on the yarn motion and should at least be considered when using numerical tools to evaluate the forces on or the motion of a yarn acted on by a relay nozzle jet.}},
  author       = {{Delcour, Lucas and Van Langenhove, Lieva and Degroote, Joris}},
  issn         = {{0040-5175}},
  journal      = {{TEXTILE RESEARCH JOURNAL}},
  keywords     = {{Chemical Engineering (miscellaneous),Polymers and Plastics,air jet loom,relay nozzle,computational fluid dynamics,large eddy simulation}},
  language     = {{eng}},
  number       = {{9-10}},
  pages        = {{990--1008}},
  title        = {{Towards simulation of force and velocity fluctuations due to turbulence in the relay nozzle jet of an air jet loom}},
  url          = {{http://doi.org/10.1177/0040517520968285}},
  volume       = {{91}},
  year         = {{2021}},
}

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